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![[naisho] Pretty Rhythm Rainbow Live - 23 [F5472DAC] - 00:02:20.556.jpg](https://i.imgur.com/2wwWxUr.jpg "[naisho] Pretty Rhythm Rainbow Live - 23 [F5472DAC] - 00:02:20.556.jpg")
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50*(pi - 1)
>>139630484
nevermind that is wrong, one second
Okay it's 50*pi - 100 cm^2
Final Answer.
I used the Principle of Inclusion and Exclusion, it took about a page
>>139628749
31.51 square meters is what I'm getting
>>139630920
Can confirm. I got that too.
>>139630920
This.
>>139630947
>>139630973
I found a corner of the shape via calculus and just multiplied it by 4, then confirmed in AutoCAD so it seems to check out
Case closed OP
>>139630920
you have to use pi in the answer
>>139630920
I feel like I'm being baited, but wouldn't it be squared centimeters?
>>139628749
>>139631104
cm*
you are correct sir
>>139628749
like how do you fucking maths people do this shit
like what's the "problem" here? I don't see anything
fuck I'm so fucking stupid I just want to fucking die
>>139631170
Unless you're part of the STEM meme, there's no reason for you to need to know how to solve this.
>>139631170
find the area of the /////
>>139631170
>like
>like
This is why you're retarded. Please stop using my oxygen.
>>139631170
its about a circle formula. thats all.
>>139631170
Find the value of the shaded area
I got stuck here and I feel retarded. How do you get the corners?
>>139628749
Are we meant to assume that the arcs intercept the box at 90 degree increments?
It seems to me that without that detail, it's almost impossible to determine an actual answer for this.under these conditions, I got about 31.4 cm^2, after butchering some dp
>>139631694
you should draw 2 lines to make a regular triangle.
>>139631866
I don't see why you need other details.
The quarter-circles are inscribed in a square, so yes, you must assume that those are 90 degree arcs.
The actual answer is about 3.51, so you're close enough.
>>139631694
>>139631971
This is what I did to solve it.
I also found the answer online to help you. It's pretty close to the method I used.
http://www.mathalino.com/reviewer/plane-geometry/02-area-common-arcs-quarter-circles
It's 10*pi
>>139631866
you can solve this by usuing equilateral triangle and circle formula.
>>139631981
31.51, I'm sorry.
>>139631981
The answer includes pi, you retard.
>>139632016
Equilateral triangle, of course. Should have seen that there. Thanks.
>>139628749
>it's a m/a/th thread
>>139632456
>not enough information
>>139632501
Incorrect.
>>139632178
If you mean 31.51pi then the retard is you.
>>139632519
Except there is no unit provided for the square, and it wasn't specified that the radius of the circles be provided in formula format.
>>139632501
Fairly certain there is, I'm just not smart enough to figure it out mathematically
>>139632501
I think what it means by "unit square" is to assume the dimensions of the square are arbitrary.
>>139632648
Do you not know what a unit square is?
>>139632648
>"I can't solve it therefore no one can"
>gives extremely amateurish and juvenile reasons
I will demonstrate how to solve this in a bit when there are more people that are willing to take up the challenge
>>139632673
It's good that you're honest, and I don't blame you at all. This problem requires extremely sophisticated machinery.
I used to be good at maths, where did everything go so wrong?
>>139632712
By whose definition?
>>139632729
Actually it's pretty reasonable to ask for the proper units for a question based on a quantifiable solution, and if you can't provide one then the size of the square in question could be infinitely large or small.
>>139632762
I won't judge you too much if you aren't/weren't a STEM major.
https://en.wikipedia.org/wiki/Unit_square
http://mathworld.wolfram.com/UnitSquare.html
>>139632817
It's a "unit square". The sides have length of 1 (arbitrary unit)
It's completely solvable as the anon above me said.
>>139632817
That's gotta be the most retarded sentence I've ever read in my entire life. Not even the children I tutor are this stupid.
Also the units of the square is literally irrelevant.
>>139632733
Practice, man.
I took a year off before coming to university doing nothing but work, drink, and play vidya and I barely did any math in that time period.
Felt like the biggest retard when I had to recall everything.
>start majoring in law
>haven't seen math since
>realize I actually liked math
>owarimonogatari made me want to learn math even more
I used to hate it so much, why did things have to happen like this.
>>139632822
>>139632867
>>139632881
That's well and good, however it's still not specified whether the solution to the question is based on the unit size or the formula, and if you were really that practiced in mathematics then you should know that both answers are valid however there are those who will attempt to make it a trick question by not specifying which they are asking for. It's ok if you didn't understand since it's more of a question of semantics rather than the questions that you are more accustomed to.
>>139633010
Here's a hint: it's not a trick question, and you're exposing how unlikely you're able to solve this by thinking that it could be one. There is one and only one correct answer. No other reasonable interpretations will give you something else.
Your insecurity is literally shining through right now.
>>139633017
Probably shit like "are you a bird?"
>>139632881
Given that I've seen /a/nons unable to do distributive multiplication before, it's really not that silly.
>>139633171
Don't worry, I've seen /sci/ do much worse.
>>139633017
You ask one of them what the other would say is the right door, and then take the opposite door of what is said to get to heaven. Doesn't matter who you ask.
>>139633138
No, you ask Bird A if Bird B would say that Door A leads to Heaven.
>>139630920
It's circle meters not square meters.
>>139633085
Well now professor, you show a stunning inability to even comprehend how to even state the obvious. Even to such a degree to further stall the correct statement by resorting to personal insults in order to further make your own position to seem like the more reasonable one. Even if you were to provide the correct answer it would probably be only partially correct, however if it makes you feel better then you can continue to stroke your own ego rather than provide and actual answer.
>>139628749
>solved it a few weeks back trying to unsuccessfully solve another question
>can't remember how to solve it now
Fug
>>139632456
>>139632729
Does anyone here know how to solve it?
>>139633017
Ask either bird what the other bird would answer. Both birds will give the wrong answer so just take the other door.
>>139633017
You ask a bird which door the other bird would say leads to heaven.
If the bird says the other bird would say the door on the left, you pick the door on the right or vis versa.
Why? If the bird is telling the truth, then the other bird is lying.
If the bird is lying, then the other bird would tell the truth and the lying bird wouldn't say which door it would actually say.
Both instances tell you to pick the door opposite the one it tells you.
>>139633017
Ask which door leads to heaven, I have a 75% chance to get it right, good for me
>>139633260
Wasn't there a god mode version where the two birds are completely unaware of each other's existence?
>>139633262
Of course that's your contention. You're a first-year grad student; you just got finished reading some Marxian historian, Pete Garrison probably. You're gonna be convinced of that 'till next month when you get to James Lemon. Then you're going to be talking about how the economies of Virginia and Pennsylvania were entrepreneurial and capitalist way back in 1740. That's gonna last until next year; you're gonna be in here regurgitating Gordon Wood, talkin' about, you know, the pre-revolutionary utopia and the capital-forming effects of military mobilization.
>>139633299
I'm the one who posted the problem, and I will solve it if no one else wants to take a stab at it.
>>139633382
>All forces on both balls cancel.
Here's your (You)
>>139633365Please solve it. I'm smart enough to know what that guy is saying is dumb, but not smart enough to solve the problem.
>>139633348
Probably? But then couldn't you just stage it as a hypothetical?
i.e. "Would a bird that tells the truth say this door leads to heaven?"
>>139633214
I would say left because of the additional weight of the ping pong ball.
>>139633262
Big words coming from a guy who doesn't know what a unit square is.
>>139633017
"What door will the other bird say leads to heaven?"
Good bird tells the truth about a lie. Bad bird tells a lie about the truth. Single negative either way, go in the other door.
>>139633412
Oops, yeah, I should've just drawn the freebody diagram instead of trying to do it in my head.
It'll tip to the right due to the extra buoyancy force.
I hope one day Biotech ppl can post their shit here.
>>139632456
Here's an attempt, go ahead and chew on it.
If you want to jerk off, do it with your dick and not your head. Or do it somewhere that's not the anime board of this autistic annonymous image board.
>>139633214
Since the ping pong ball is less dense than water, the scales will tilt to the right side. The added force on the right side is equal to the weight of the volume of water displaced. Left side just has the added weight of ping pong ball.
>>139633417
I think it's better if I TeX it. Give me a minute.
I'm a math major and I still can't solve it.
>>139633557
Incorrect. You do not know the length of r*sin(45).
>>139633421
I remember the answer being something like: are the number of Lies you're about to tell me equal to the number of doors to Heaven located on my left?
how do i learn calculus
>>139631245
It doesn't have any inherent value, only what we make of it.
>>139632016
Had to go to walmart real quick, but I didn't use that actually. This is pretty much what I did, but I'm too lazy to scan the paper or type all that shit out. I found the dimensions of the triangle inscribed in one corner of the shape, then I integrated to find the sliver of the circle. You don't really have to integrate though, you can just use the ratio of the circumference to find the area and then subtract the triangle, but that's less fun
>>139633642
Did you not do highschool or are you under 16?
>>139632456
I got as far as:
length of box > 6r
not sure where to go from there.
>>139632456
Don't you need at least an angle or two between these circles? The one in the upper right corner doesn't look constrained to the right edge and it looks like it has some wiggle room, so I don't understand how you'd get a unique solution without graphically measuring them.
>>139633725
use a better color jesus
>>139633738
they shoved me into the retard class.
didn't learn a dang thing.
You don't need calculus to solve it, the curves are quarters of a circle.
>>139633597
You shouldn't need to from the /a/non's working. As all they did was take out a common factor of r in the first line of working. The method seems perfect, although what I find to incorrect is the length of the hypotenuse. I assume it's meant to be 4r rather than 3r which is just a minor mistake.
>>139633214
The right cup goes down, not from the weight of steel, but the weight of water.
Even though it's not enough to overcome steel's weight to float it, buoyancy pushes the steel ball up. Equally and and oppositely, it pushes the water down. Effectively, the weight of the ball's volume in water's density has been added to the right cup.
Buoyancy pushes the ping pong ball up, and the water down, but the ping pong ball is attached to the cup that the water is also poured in, it cancels out. The left cup has only the marginal weight of the ping pong ball added.
>>139633771
no
>>139633889
Actually it isn't. He's making quite a bit of assumptions here. I have to work soon but I'll see if I can whip up a solution while I eat dinner
>>139633417
The steps are here. If you want more detail I will be able to provide them.
>>139633597
What, because you can't tell if those 5 circles form a square or not?
If they do, then it should be possible to get 4r*sin(45) in terms of r, then add it up with all the other aligning r to add up to one of the sides.
Of course, I'm making the assumption that the top left 5 circles make a square, and the bottom circles aligns to make a side, but I think that sounds about right in order to make that shape without the circles overlapping.
>>139633889
Right, this is why I could never receive 100% in my math classes.
It should be 1.46447 then.
>>139634007
>Of course, I'm making the assumption
That's why you're incorrect.
>>139633626
But wouldn't you be asking the Bird that tells the truth to lie, which it can't do? It's answer would always be no.
>mfw I have an easier time understanding raw anime than the math mumbo jumbo in this thread
>>139632729
While I think there may be arguments on how sophisticated Solidworks is...
But you know, that's a really funny gap in the top right hand corner, and I almost missed it.
>>139634127
Learning moon is easily than math, this is coming from someone doing both right now.
>>139634256
Guess you don't have much time for English then.
>>139634246
>empirical methods to "solving" purely mathematical questions
Stop
>>139633642
https://sites.google.com/site/scienceandmathguide/subjects/mathematics
Have at it anon. This is how I got my current job as a math tutor.
>>139634256
I know moon, mostly. That was my point. I haven't touched math in over a decade. Fuck math.
>>139634327
>but.. but... you didn't use my favored technique to the same end!
>>139632456
Only thing I can think of is that there is a constant packing efficiency for this specific type of example (10 circles in unit square [and filling it])
So then you can know how much isn't there, divide that by ten then use geometry to figure out the radius.
Otherwise there's nothing but chaos here. No angles, no distances, congruency markings, just guessing.
>>139634315
That's what happens when you learn the power or moon runes.
>>139634404
It's not a solution though.
>same end
Holy shit you're delusional. Typical comp sci major
>>139634127
>Not knowing both.But of course the Japanese are asking for an N2 before I can work there and so my lunar knowledge will never be more useful than earning worthless epeen.
>>139634444
You're waving your math dick around on an anime forum. It's to the same end.
>comp sci major
Is that your best guess?
>>139634493
>still thinks that you've achieved that end
>thinks that he will ever achieve that end with empirical methods
And you're waving your retardation around on an internet forum.
>>139634444
>muh meme comp sci degree
Penny-less physics major detected.
>>139633642
Honestly, calculus can be really really simple or really fucking hard depending on who's teaching you and their ability to tie it to concepts that you already understand. The derivative is literally just the slope at some point and the integral gets a bit more difficult, but once you understand that what dx represents and the fact that the derivative of y as a function of x is dy/dx things get easier to understand
>>139634444
To be honest anon, doing it his way requires considerably less effort, which pretty much makes it the better way to solve the problem. I mean, It doesn't show an understanding of the concepts needed to solve the problem, but it does show problem solving skills.
>some anons literally getting triggered at math
Did you get cucked by it at some point in your lives?
>>139633010
>>139633262
Stick to watching anime
>>139634568
>which pretty much makes it the better way to solve the problem
Here's your (You)
Boy, all this math I don't know makes me wish I didn't fall for the STEM meme.
>>139634627
>Simplicity and practicality mean nothing.
Ok I guess it's time to post anime faces.
>>139634533
I love math theory and all, but you should try not to be so raged at a tongue-in-cheek but entirely reasonable solution method.
>>139634710
All STEM degrees = instant job is a meme. Picking a marketable degree isn't.
>>139634712
It only means something when you get the correct result, retard.
>hurr lugging around a computer software that does nothign but approximate possibly inaccurate images on the internet is "practical"
Holy shit please tell me you're actually trolling me
>>139631138
any imaginary numbers can be used through logic to solve that
>>139634784
No imaginary number solves x + (something) equals x you fucking retard.
>>139634775
>hurr lugging around a computer software that does nothign but approximate possibly inaccurate images on the internet is "practical"
>Nobody uses CAD software for useful things
Now I'm being trolled
>>139634627
Look anon, I'm the kinda guy who learns OpenGL and starts developing a game engine from scratch because he wants to understand how it functions. I would personally solve it the mathematical way, but let's be honest, if people did everything with an educational and theoretical standpoint rather than a practical one literally nothing would ever get done.
Can't believe I wrote this up for /a/. Fuck this board.
>>139632729
I submit it's not possible or that you fucked with it a little to make it that way.
All anyone could do is make a few arbitrary lines of 2, 4, or 6 r at immeasurable or unknowable angles to each other.
Also the way you say implies machinery is concerning as well.
>>139634810
sorry, used the wrong words. I meant that any rational numbers can be used to solve that. I'm a little sleepy right now.
>>139634775
>Lugging around computer software.
You're right, what a fucking burden. I guess we will never have pocket sized computers we can carry around and use at a whim.
Also
If the image was inaccurate then why include it in the problem? Wouldn't a text description be more appropriate?
>>139634888
what the fuck are you talking about?
>>139634897
for got my anime face
>>139634897
It just a visual representation to guide you, not to base your entire solution on it.
>>139634821
Except that the useful things does not include finding incorrect solutions to a problem, you fucking idiot
>>139634874
Fuck there are typos, the i should be an s in the ideal.
Fuck it who cares
>>139634915
Remember when I said I was sleepy? I went and check the picture again and just saw it's an X only situation, not an X/Y situation, so whatever I said can't be applied. Sorry about that.
>>139633017
Which door would you point to, if I asked you which door leads to Heaven.
>>139634876
The solution is literally above you and you still chose to click submit.
Fucking millenials
>>139634874
I mean I'm legally blind but the radii of those circles aren't almost half the length of the sides of that square.
I can spam my numpad too.
>>139632501
Why is that?
Just define the side of the square as a and get cracking.
>>139635074
Then I also submit that's not the fucking solution.
>>139635098
No man, let them keep circlejerking over it, it's fantastic to watch.
>>139635098
It's a typo. It should be 0.148204
>>139634968
Are you the one submitting >>139634874 as the answer? I really hope not.
>>139635186
I knew I should've posted citations for the skeptical retards out there.
Section 3:
http://www.cecm.sfu.ca/CAG/papers/edu12.pdf
>>139635164
0.148204
>>139634246
.2964/2 = .1482
Seems like they got the same answer.
>>139635129
Positive or non negative?
>literally just count
Would be a pretty neat problem for my 9 year old niece.
>>139633214
Left is heavier.
The weight of the right cup is (Vcup - Vball)/1.
Th weight of the left cup is (Vball/pball)+Vcup/1.
>>139635332
>the weight of the ping pong is larger than its buoyant force
Yeah that's why ping pong balls sink in water right? Fucking dumbass
>>139635323
That picture is way too accurate.
>>139635129
24C4
>>139633558
The ping pong ball is fully submerged and has the same volume as the steel ball. Therefore, the amounts of water displaced must be equal, therefore, as you said, left has the weight of the ping pong ball and must be heavier.
>>139635458
What this anon >>139635375 said.
Draw out a free body diagram and think again.
>>139635504
Anyone who knows about free body diagrams would not spout the same stupid shit he did.
>>139628749
Goddamn it. I can't do any of the math ITT. I feel like math threads on /a/ are really fun, but I'm missing out because I'm a retard.
>>139635458
It's pretty straightforward to reason that the left is a closed system, but the right is not. The downward force of the steel ball is being reacted by the string/crane.
So the left is going to be heavier, because the ping pong ball's weight is being reacted out by the scale.
>>139634874
This is retarded. The radius obviously can't be 0.4... since the circle would be too large to fit into a unit square more than once.
>>139635603
Nothing stopping you from learning.
>>139635610
Troll confirmed. Pretty funny actually.
>>139635612
Refer to >>139635164. And actually read the whole thing (image and thread) before you comment like a reactionary retard.
>>139635268
Thanks for the paper anon, that's pretty cool.
>>139635648
I guess, but I would need to go back to the basics. I mean Algebra 1 stuff.
>>139635664
>paper
Those are lecture notes, baka
>>139628749
bullshit like this is why I'm afraid to go to /sci/
>>139635675
If you don't have the motivation to learn, then you shouldn't whine about not knowing in the first place.
>>139635738
This guy gets it.
>>139635675
Use Khan Academy, it's suitable for beginners.
>>139635738
I don't mind learning, but I am just disappointing in myself for letting myself get to a point where a fucking middle schooler can do math better than me.
>>139635764
I'll look into it. Thanks.
>>139635807
*disappointed
>>139635807
the bright side is that you'll probably catch up and surpass a middleschooler fairly quickly, if you stick with it.
>>139635807
>where a fucking middle schooler can do math better than me.
Believe me, they can't. Even some high schoolers struggle to separate symbol from numbers.
t. Maths tutor
the answer.
![[Doki] A Channel - 09 (1280x720 h264 BD AAC) [032D432A].mkv_snapshot_08.37_[2016.03.26_23.16.55].png](https://i.imgur.com/rubLe60.png "[Doki] A Channel - 09 (1280x720 h264 BD AAC) [032D432A].mkv_snapshot_08.37_[2016.03.26_23.16.55].png")
>>139635926
Holy shit this is gold
>>139633017
I like the version where there are three gods, true/false ones and one completely random. You have to figure out which one is which with three yes or no questions. They understand you, but you don't understand the language they answer in. How would you solve it?
>>139635926
You're just assuming that angle is 30 degrees
>>139635971
It's correct though.
>>139636117
>It's correct though
>>139631138
pro tip: you can't
they will always be 26 apart.
>>139636057
No assumption necessary, you just subtract the 60 degrees of the equilateral triangle from the 90 degrees of the square.
>>139636117
It's correct but poorly organized.
>>139636248
Not him, but will the top corner of the equilateral triangle always be the point of intersection between the two quarter circles if their radii are equal to the length of the square?
Sorry if this is obvious, I haven't done anything geometry related in years. The last math related course I took was literally first year uni calc.
>>139636436
>first year uni calc
You could arguably solve OP faster with some integration.
>>139636436
>>139636248
You're assuming the radii of the arcs is the length of the square. The picture doesn't give that information. Any number of circles with different radii could create the shape shown while still having points that intersect the corners of the square.
>>139628749
x = 4(the arc in yellow + the triangle in blue)
the arc in yellow = 1/12×πr^2 - (the triangle in red)
the triangle in red = 1/2×r^2×sin(π/6) = 1/4×r^2
the arc in yellow = 1/12×πr^2 - 1/4×r^2 = (π-3)/12×r^2
Also, the triangle in blue = 1/2×[(√3/2-1/2)r]^2 = (2-√3)/4×r^2
Therefore, x = 4[(π-3)/12×r^2 + (2-√3)/4×r^2] = (π/3+1-√3)r^2
from r=10
x = 100(π/3+1-√3) [cm^2]
>>139636617
>assuming it's a square
>>139636724
If you don't assume it's a square you can't solve it.
>>139636758
>assuming it's solvable
>>139636780
Well if you don't assume it's solvable then you can't solve it.
>>139636724
>assuming curves are the arc of circle
>>139636617
If the radii isn't equal the length then either the arcs will intersect a side instead or it isn't actually an arc. Your image is the latter.
>>139636951
The centers don't have to be on the corners of the square.
>>139633260
Bird A is liar, door A is door to heaven, Bird A says no
Bird A is liar, door A is not door to heaven, bird A says yes
Bird A tells the truth, door A is not door to heaven, bird A says yes
Bird A tells the truth, door A is door to heaven, Bird A says no
This does not give you any additional information as to the doors at all.
>>139636921
>assuming the problem is finding the marked area
>>139632456
solved it like a normal human and not an autist, I mean, mathematician
>>139636704
This is correct, you can also do it the hard way by integrating the semicircle
Who gives a shit about math?
Numbers aren't real so who cares if a circle has 76 triangles in it?
>>139637113
part 2
>>139637114
the hacks- err. professors that refuse to give anyone that waltzes into college an engineering degree
>>139637114
You wouldn't have been able to make that post if numbers weren't real.
>>139637145
>STEM
>>139637001
If the center isn't on the corner then the arc will intersect a side rather than a corner.
>>139637049
Depending on how you solve it you'll end up calculating the unmarked area anyway
>>139630643
Got the same thing but did systems of equations.
Used variables to represent the shaded area, the 4 petals next to the shaded area, and the 4 areas touching the sides of the square.
>>139636577
I didn't major in a math related field so only first year calc was compulsory. It's been a few years so I don't remember too much. I still remember integration but fuck if I remember how or when to actually apply it.
>>139637212
only researching mathematicians actually use that garbage, and universities that need a casual filter
>>139636704
You forgot to multiply by 4 in your final answer though.
>>139637099
So you solved it like a retard who doesn't know how to think abstractly.
I mean there are people in this thread right now who's taken more sophisticated (albeit incorrect) approaches that were along the same lines as yours and yet you still decided to flaunt your retardation by posting your hilariously stupid solution.
Your solution is incorrect by the way.
>>139637113
>>139637131
>Not rotating the image before posting
Worse than Hillary
>>139637230
kek
is this a new me me ??
literally every engineer and physicist uses it too even if we just code it up instead of trying to solve problems analytically
source: physics major
>>139637049
>assuming they are marks
>>139637245
calm the hell down aspie
just because people don't go out of their way to do something in a more difficult manner than it has to be done doesn't make your method better
>>139637267
keyword: major
It's not like a mechanical engineer is going to write down a bunch of differential equations and integrals on paper, we have programs for that shit now
>>139637262
Sorry I posted it from my phone. It wasn't rotated in the preview.
Anyways, final answer after subbing it it
400(-sqrt(3) + 1 + pi/3) cm^2
>>139637269
Now you got me.
2deep4me
>>139637308
>than it has to
>using literally wrong methods to get literally wrong answers is better
>hurr aspie this autist that
Confirmed mouthbreathing retard. Make your parents proud for once in your life and kill yourself.
>>139637269
>assuming they are
>>139637351
How is using a ruler to measure something wrong? And even if it's off, the smallest difference doesn't matter.
>>139637308
>it's not like a mechanical engineer is going to write down a bunch of differential equations
step 1 for any physics or engineering computational problem: write down the fucking DE
step 2, take into account any spatial symmetries
step 3, use a finite difference approximation (if you're using an iterative or matrix inversion method, I am well aware there's a trillion fucking ways of doing things FD is just the most common and most simple)
step 4, code that shit
Plus if you're in physics you need to use integrals for expectation values and probabilities within a domain as well as normalization
>>139631218
>STEM meme
Just as that other anon said, you /v/ make everything a fucking meme, speaking japanese will be next.
>>139637202
>If the center isn't on the corner then the arc will intersect a side rather than a corner.
>>139637392
>How is using a ruler to measure something wrong
Because geometric constructions are now more than just ruler and compass, retard.
>smallest difference doesn't matter
Just like how the small vibrations caused by wind resonating with the Tacoma bridge's natural frequency didn't matter right? Not even engineers are as retarded as you are.
>settling for shitty answers
Typical of an underachiever.
>>139637460
>Because geometric constructions are now more than just ruler and compass
in other words, "you can't just measure something to measure it!"
And there's a huge difference between a few circles in a box and a bridge that people rely on
At the most, I understand using a derivative to optimize, or even the washer method we learned in Calc I makes sense. But you get to a point where it would just be easier to go there and take simple measurements and let it be done. Besides, how is my method of finding the radius wrong? Because if it isn't, something in the image is messed up.
>>139637113
>>139637131
Thanks for the offer, but I think I'll pass. I want to be in Madoka threads.
>>139637240
No, you can understand my answer is correct, because if π=3,141 and √3=1.732, x = 31.5 .
This is close to the answer.>>139630920
>>139637526
The image doesn't contain the solution, retard. It's meant to be a guide for setting up the problem, not for you to use a ruler to actually measure it like the absolute fucking simpleton that you are.
>literal retards like you are allowed to roam society
Fucking hopeless.
>>139637499
>31 square meters is close to the answer
>doubleposting tripfag
Man come on.
>>139637577
Well why the fuck would I use a guide if I could go up to it and measure the damn thing?
And stop with the insults you sound like a 15 year old /b/tard
>>139633017
Post the one that has 3 degrees of difficulty.
>>139637322
>>139637545
Opps, I let my 'a' to be half of the radius, thus it should be
100(-sqrt(3) + 1 + pi/3) cm^2
>>139637604
>Well why the fuck would I use a guide
To set up the problem properly? Are you seriously this fucking dense?
>hurr y-yer udneraeg
The irony
>>139637634
there's no need to set up a problem though
>>139637647
>there's no need
(You)
>>139637672
(You) deserve some attention too
here you go
fucking nerds
>>139634627
There are times when you just need to know that the shit you are using just works.
>>139637647
You got the wrong answer because you didn't, dipshit. I don't know why you keep defending your method when you didn't even get it right.
>>139633214
This is a trick. The steel ball is held up by the Rope outside while the ping pong ball is tied with in the cup
>>139637741
well it's probably wrong because the picture's off
but if you have a correct picture you can just use ratios like I did
if not you can actually go up to the physical object it's representing and use like a measuring tape or something, not that anyone would make something like that
>>139637777
Most pictures are slightly off, that's why you can't just fucking measure it and have to actually do math.
>>139637777
Nice digits.
>>139637777
>blames it on the picture even though multiple people in this thread had gotten the exact or near exact answers already despite that
This is absolutely pathetic. I cannot fathom how someone this retarded and stubborn can exist.
>>139637791
>>139637824
There's no situation I can think of where you can't just go up to it and measure if. Can't measure the radius? You can use the circumference too
>>139637795
thanks dude
>>139637034
>>139637034
>Bird A is liar, door A is door to heaven, Bird A says no
>Bird A tells the truth, door A is door to heaven, Bird A says no
Do you not see the common factor between these two answers? If the bird says "no" to the question, then you know that it's the right door. If it says "yes", you know the other door is the right one.
>>139637860
>There's no situation
What if I gave you no pictures and literally just a description of the circle packing, with what circles are touching each other and the boundaries?
Fucking retard.
>>139637888
What real-life application would that be useful for?
Oh and by the way, a lot of people are getting 0.148 which is nearly identical to my answer
nice trips though
>>139637860
How about this situation right now?
>this thread scears me.
Make it stop. Go back to the anime girls and lolis.
>>139637924
>asking for applications on a circle packing problem
>on a circle packing problem
>circle packing
You can't be this fucking stupid holy shit.
>>139637947
>>139637964
I used MS paint and my answer was just as good as that of anyone else. And if the balls were packed in a slightly different way, the methods to solve for it would also be completely different.
>>139637985
>hurr it's close enuff
Fuck off you retarded faggot
>>139637628
Some civil engineering shit right here. But yeah, I still can't fucking do it, that freaking SFD & BMD of whatever it is
>>139637985
>just as good
>literally off after the first 2 digits
Are you fucking blind or are you just that retarded? I'm incline to believe it's the latter.
>>139638005
it is though
>>139638030
Alright I'm satisfied with my own answer but I'll prove to you that it's just fine. I glanced over the thread and it looks like nobody so far got it right.
so if the area of the square "a" = 1
then the area of all the circles is 10pir^2
so im sure you can just use optimization or some shit and figure out what the 10pir^2 equals, then divide by 10 to get area for each circle and get the radius from that easily
>>139638262
Stop posting. You've already established that you're an absolute retard. No need to give further proof.
>>139638307
you and I both know that I can't do that
>>139628749
Why the fuck do threads like this exist on /a/ again?
They literally have nothing to do with anime?
>>139638561
Lurk more, don't ask stupid questions.
>>139635331
>positive integer
>>139637460
Who /po/ masterrace?
Feels good being able to double the cube.
>>139634007
Those 5 circles can't form a square. You can see that clearly if you look at the circles at the bottom of the picture. Bottom right circle of your square is obviously shifted so that circle below it can fit.
>>139637628
Don't you need to know the contact surface areas for that?
>>139628749
One hundred centimeters!
>>139637884
It doesnt fucking matter if you know door A is the door to heaven, because you don't know which door is door A
>>139639558
kek'd/10
