How do we fix the American public education system?
Improve the economy.
Reintroduce Shop Class.
Let people 16 years old apply for jobs in factories.
That's not common core. That's just a shitty picture. It looks like any math problem I had back in my geometry classes in high school before CC, but some retard cannot into Pythagorean Theorem.
>>55473494
>become China
No thanks faggot
Turn it into a private business. The government has fucked our system for long enough and once Unions no longer have anyone to kuck, we can actually hire people worth a shit to teach children instead of senile shitters clogging up the classrooms.
>>55473847
>Revert to a system that worked in the past
>Become like China
Maybe there's something to this...
>>55473442
(12*5)+((16-12)*5) cm^2
>>55474027
I fucked up lol
(12*5)+(((16-12)/2)*5) cm^2
>>55473442
I guess the proper way would be
sqrt (8^2-5^2)*5+12*5 which is the same as
>>55474085
>>55473847
>>become China
>America starved for higher skill trades
>lets not do anything about it and import fucks to do it
If little johnny wants to learn CNC, let the little fucker learn that instead of calc, bio etc.
>>55473905
Honestly, I looked back at my post and remembered China is actually doing much better than we are. Maybe we should focus on industry. I'd rather smog than having the retards we have now growing up.
>>55473442
I've seen this picture posted way to many times on this board, if you want to make an argument against common core at least get some new goddamn fucking material.
Welcome to American government school.
Pic related.
>>55473593
Not needed really. Just 16*5
>>55473442
I'm not understanding the problem with that question
This is a basic geometry thing. Find the area of the center rectangle, find the area of the two triangles next to it.
Alternatively, if you know your shit, combine the triangles into a rectangle and find the area of that and you only have to use the simple height x width of both rectangles
so one is 5x12 = 60^2
The triangles together make a square of 5x2, so 10^2
70^2 is the answer.
wait what the fuck, now i see it
that doesn't exactly make it a fault of common core, though, I saw issues like this when i was in school a decade and a half ago
>>55473442
super easy.
5 x 12 = 60
12-16 = 4 divided by 2 = 2, 2x5 = 10 divided by 2 equals 5 x 2 = 10
the area is 70
no a2 + b2 = c2 needed
>>55474027
>>55474085
>>55474224
Shit nigga, the fuck you doing?
((12+16)/2)*5
Oh, I see. The bases of the triangles can't be 2, like the picture implies.
>>55474027
>>55474085
>>55474224
first of all, it's unitless, so it's just 'square units' not cm.
second, if the legs are the same length the top is centered so the base minus the top divided by 2 is the length of each triangle's base
it's 12 * 5 + {2 *} 2 * 5 {/ 2} where units inside braces cancel.
answer is 70
>>55474594
yeah. its not drawn proportionally. but that shouldn't really matter in this context.
>>55473442
Move to a school district that doesn't use CC
>>55474460
easier to draw larger rectangle and then subtract the sides
>>55474466
this to be honest family
>>55473442
end the "no child left behind" bullshit
prepare for the massive chimpout
>all these idiots ITT thinking it is area 70
>>55473442
School is mandatory workforce indoctrination and government sponsored daycare.
It is fundamentally flawed, and would require square-one, ground-up restructuring, but:
Stop giving it so much money.
Stop using whichever companies that make the curriculum and books (I don't personally know of an alternative)
Teach things that matter (how to live in modern society)
Quit teaching bullshit nobody wants or needs; leave a bunch of stuff for college if they really want it
Explain to kids WHY they need to learn certain things
Separate public schools into good, medium, bad (or just good/bad), like germany (so the niggers dont drag the rest of us down)
Encourage home schooling and voucher programs, also, bring funding up to a state or federal level.
>>55474807
Die in a fire, weed flag. Home schooling and private schools are the biggest scam out there.
>>55473442
>5^2+2^2=8^2
Orwell is vindicated and Pythagoras rolls in his grave.
>>55474699
It's fucking correct to use the correct formula
((a+b)*h)/2
((12+16)*5)/2
>>55474466
>mfw all these Americans don't know the area formula
>these are the same people that want a race war
>maybe the think too highly of their abilities
>>55474239
Finally someone has said it.
>>55474932
The only way that the shape would be geometrically sound is if it wasn't in fact a trapezoid (the question never explicitly states this) but then you'd be at a loss to solve it.
>>55473442
What's the priblem? It's 80. I did that in my head.
>>55474935
>dat bracketing
> maybe the think...
Hmm...
>>55474611
The problem with that is 8^2-5^2 does not equal 4, so the base of the triangles cannot equal 2.
>>55474935
>>not being in the habit of creating formulas to suit your purpose as you need them
i'd say norways education system has failed, but, the education system didn't teach me to do it, and every education system in history has failed, so.
>>55473442
stop using it so it loses all funding
>>55475188
Who the fuck cares, you will fucking fail upper level math if you try to work out answers from the drawing presented. Retard.
What's the problem with OP? I had problems like this in the mid 90s. It's not hard.
>>55474805
yeah more about what this guy is saying
https://www.youtube.com/watch?v=uj8f7ycnUtU
>>55475188
but they obviously are, so that's what you go with.
you shouldn't be using the number 8 at any point in this problem.
>>55473442
Ignoring that it isn't drawn to scale;
5x12 = 60
4x5 = 20
Answer: 80 inches/centimeters/whatever
>>55475208
>creating formulas to suit your purpose as you need them
Google; Trapezoid area formula.
>>55475322
>>55474805
just end the system altogether. fucking work it out amongst yourself if you want to learn something from someone else.
>>55475188
Oh shit I just got that. I didn't even pay attention to that because I didn't use Pythagorean's theorem to solve it.
>>55475322
Wait. God damnit. I failed again. It's 2 on each side of the central square, not 4. So 2x5 = 10
60 + 10 = 70
>mfw pol cannot common core
![find_derivative_questions[1].gif](https://i.imgur.com/POH5ucK.gif "find_derivative_questions[1].gif")
reminder that if you can't solve high school level math you really shouldn't be allowed to browse /pol/ let alone the internet
>>55475264
>from the drawing presented
It's not "from the drawing", it's pure numbers. The shape presented is impossible on a basic geometric level because the length of the sides has overdetermined the parameters.
>>55475436
Idiot, you forgot about the other side as well. It's still 80.
>>55475356
you don't have to 'teach' me how to find the area of something. i just know, because i'm not stupid. that's how it literally is with people that aren't stupid. you don't really have to teach them. you just tell them. "multiply the two dimensions". from that, any reasonably intelligent person could extrapolate pretty much 99% of trigonometry, and then start re-discovering calculus with a little effort.
>>55474438
The problem is that 8^2 - 5^2 ≠ 2^2. And if that is the case as the diagram states, the figure is not a trapezoid so you can't use the standard trapezoid area formula to find this object's area.
It's 80 retards... and if you need a pencil and paper to jot anything down you should just go ahead and kill yourself now
>>55475322
Congratulation you're retarded.
>>55475188
are you trying to use the Pythagorean theorem? you made a mistake if you were.
it's a2 + b2 = c2
your value of 4 is = c2. to get c, ie the base of the triangle, take the square root of both sides. sqrt(4) = 2.
>>55475523
those are right triangles, which are halves of a square.
>>55474663
But it does because there is no standard formula for the area of this object.
>>55475523
No. You remove the central "square" 5x12 (60)
That leaves two triangles, 2x5x8. Fit the two triangles together and you have a 2x5 (10) rectangle.
>>55475601
>you made a mistake if you were
No he didn't you fucking idiot, learn to algebra.
>>55475303
>>55475264
Except the only thing which suggests the shape is a trapezoid is the drawing. It isn't explicitly stated to be, and geometrically it can't be.
>>55473442
Base 1: 16 plus base 2: 12 equals 28. Height: 5 times 28 equals 140.140 divided by 2 equals 70. A=70. Step up your game, OP.
>>55475303
You should not assume that the shape is a trapezoid, and if you did, you'd be wrong, precisely because that 8 is there.
>>55473442
12*12= 144
2(4*5)= 50
=194^2
ez
We should have a national education because all the repubtard states would decide not to teach evolution and replace it with obamaisanigger 101
>>55475601
No, he's right.
a2 + b2 = c2
a2 + 5^2 = 8^2
8^2 - 5^2 = a^2
64 - 25 = 39
square root of 39 is 6.24~
>>55473442
>>55474611
>>55474932
>>55475061
I see what's happening now, I totally overlooked the point of the picture.
it could be a trapezoid, but not as presented. the base would be way more than 16 and the height couldn't be 5.
the base would have to be what, 64 - 25 = sqrt(39) so its base would be 12 + 2*sqrt(39) which is ~24.49.
>>55475538
Does it really matter though? You don't need to use the Pythagorean theorem to solve it. Just assume the shape is a trapezoid like you're supposed to and solve.
>>55475643
>2x5x8
A 2x5x8 right triangle is impossible you tard
Why should we assume that the lines of length 12 and 16 are parallel?
>>55475630
you shouldn't need one.
except, the kids that can just figure it out because they're not stupid are going to be waiting ages for the stupid kids to figure it out. fuck that smart kids, idiots are our future! anyways, abolish education systems.
>>55475767
dude if i was going to be literal about that shit and harass the graphic design artist who made that trap, i'd just use a fucking ruler to measure the shape and give the answer in inches.
>>55473442
16 x 5 lol
Just cut the triangle on the left and paste it on the other side to make the reichtangle
>>55475567
>I'm still in geometry class!
>>55475781
wops
12*12= 144
2(4*5)/2= 25
=169^2
there,
EZ
Z
>>55473442
YOU FUCKING IDIOTS A 2:5:8 IS NOT A SPECIAL EUCLIDEAN TRIANGLE! THESE UNITS SUGGEST AN IMPOSSIBLE RATIO!
>>55475886
Because then it's not a trapezium.
But all of this autistic arguing about the dimensions is dumb, the question isn't asking about whether it could be a real shape, it's just asking you to assume it can work, and to solve the question they're asking.
>>55475886
like, dude, why should we assume its not actually a trick question quiz on qabbalistic numerology? THE ANSWER IS 444 WHICH MEANS VAMPIRE GODDESS
>>55475567
It's 70, but you were close.
This is average American schooling in my school
>>55474787
>>55474787
>>55474787
>>55475873
It matters because you SHOULDN'T assume. And if it's not a right triangle, the object is an irregular shape, not a trapezoid, so it has no standard area formula.
>>55475509
So what? You never rely on the image presented to work out the values. You base it on the values alone, always.
>>55475964
A TRAPEZOID CONTAINS RIGHT TRIANGLES!!!
FUCKING DIE1
I don't get it, the base is 2 according to the numbers, but it's 6.24 according to pythagorean theorum
the 8's should be sqrt(29)
>>55476042
>So what? You never rely on the image presented to work out the values. You base it on the values alone, always.
So then the shape isn't a trapezoid and is underdetermined. Good to see that we're in agreement.
>>55476036
if you didn't want me to assume that it is a trapezoid, maybe you shouldn't have drawn a fucking trapezoid.
fucking idiot.
The picture implies the bottom part of the rectangle is 4 units long. That seems to not be possible
>>55475886
Because 8 is the same as 8.
>>55474950
I bet you memorized a log table, too.
>>55475957
third try
12*5= 60
2(4*5)/2 = 25
= 85
FUCKING
SIMPLE
DUMB
BURGER
MATH
Oh yeah, well how about this?
>>55475807
This nigga gets it. If it's not a trapezoid I don't know how to solve it
>>55475927
>you can just figure it out
OK, you do that. Find me the area of the object of sides 8,12,8, and 16 where the distance between one end of the side of length twelve is 5 units away from the side of length 16. I expect you to show complete work.
>>55473442
A=70
>>55476207
are you retarded
that means nothing
>>55476085
Duh, that's the point. Do you have autism/aspergers?
>>55476159
Tell that to the designer, who clearly should have failed geometry.
>>55476036
YOU FUCKING RETARD IF IT'S NOT A TRAPEZOID YOU CAN'T DETERMINE THE AREA.
SUPPOSE THE TOP AND BOTTOM LINES AREN'T PARALLEL AND THE SIDES DON'T HAVE COMPLEMENTARY ANGLES AS YOU SUGGEST, THEN IT IS IMPOSSIBLE TO DETERMINE THE AREA WITH THE GIVEN SIDE LENGTHS.
QED
YOU
FAGGOT
>>55476251
hold on hold on
2(2*5)/2+(12*5)=70
This HAS to be right.
I mean shit.
>>55476284
i could if i wanted to. i really don't. my mind doesn't really function well unless applied to an actual task.
>>55476266
70°
>>55476480
>IMPLYING THERE EXISTS A SOLUTION TO AN INCONSISTENT SYSTEM OF EQUATIONS
>>55476392
>>designer
>>of shapes
>>that conveniantly already exist
>>literally just 4 black lines
>>failing at it
just kek yourself
>>55476367
YOU GOD DAMMED IDIOT, THAT MEANS THE BASE EDGE SHOULD BE AN IRRATIONAL NUMBER NOT 16
>>55476452
Yes you can, just not with middle school geometry.
>>55474911
DUDE
>>55476733
>this terrible reading comprehension
holy fuck that's embarrassing.
>>55476746
What's the formula
>>55476746
NO YOU FUCKING CAN'T RETARD
NOT WITHOUT THE ANGLES
>>55476569
What else do you call a person that devises test questions other than a designer, you fucking moron?
>>55476266
40 degrees
>>55476837
It's not a formula, it requires the use of trigonometry and calculus
Boy did this thread derail.
>>55476919
YEAH TRY TO INTEGRATE YOUR WAY OUT OF A DEGENERATE SHAPE FAGGOT, JUST TRY.
You can't find the trapezoid's area because it fails the supplementary angle theorem of an isosceles trapezoid.
this fucking shape cant even exist with these proportions
>>55473442
ONLY CORRECT ANSWER:
DNE
>>55474419
more like 5 x 14 = 70
how the flying fuck are all of you so braindead
70
>>55473442
( 12 * 16 ) / 2 * 5
Are you ok /pol/ ??
Do you think you can ger your shit together /pol/?
Dont get distracted by unneccesary things.
>>55477291
(12 + 16) / 2 * 5 lol
>>55473442
Whats wrong with the problem?
>>55477155
Obviously it's not drawn to scale you fucking grape smuggler.
>>55477296
What allows you to conclude that the 8 is unnecessary information?
>>55477353
it gives 2 different results
70, and if you use trigonometry, 91.2
>>55474663
Except it's not drawn logically at all. If you want to use right angled triangles in basic maths, have them be 5 opposite the hypotenuse and 3 and 4 at the sides or something.
>>55477353
Which means you cannot assume that it's a trapezoid, which is the problem.
>>55473442
wtf thats easy basic shit.
14x5 = 70 is the answer.
Just move the left part past the dotted line and fit it on the right to make a rectangle. Then just use common sense to find that the top and bottom end up equaling 14.
>>55477353
It's not drawn to logic you fucking cock smuggler.
ITT: Americans prove they are so terrible at mathematics they miss the point completely.
wow
You need o stop using recognition-based tests so much, for one thing. A multiple choice test isn't a real test
>>55473442
If we assume the line marked "5" is perpendicular to the line marked "16", the area is about 82.6821.
>>55477504
>sqrt(2^2 + 5^2) = 8
>>55477504
What don't you get about "it's not a trapezoid"?
>>55475885
Depends on the spacetime continuum, pic related: a triangle with three 90deg turns
>>55477410
5th grade.
>>55473442
Fix? It has been a joke all along, mate.
>multiple choice tests at all levels including university
Come on. What year is it?
[ ] 2015
[ ] not 2015
>>55477600
(Consequently, this also assumes that the figure is misleading and is not actually an isosceles trapezoid.)
Yo guys, i'm trully mad.
>>55477296
IMPOSSIBLE, SINCE THE HYPOTENUSE IS 8. TRIANGLES OF LENGTH 8, 5, AND 2 CANNOT BE ADJOINED BY THEIR HYPOTENUSES TO FORM A RECTANGLE.
>>55477646
This is a euclidean geometry problem you twat. Riemannian geometry is a bit more advanced than the common core level...
>>55477761
> 4+12+4 = 16
Thus, another failure in Algebra.
>>55477761
Lel
>>55473442
Subtract the Negro Equation from the Formula
>>55477761
>all that work
>still misses the point that the '8' is wrong
>actually proud he can do 1st grade mathematics
If anyone needed any proof that /pol/ is mostly populated by literal children, see this thread.
Either that, or a bunch of retards. Christ.
>>55473442
the answer is 70 you dumb niggers
>>55477555
>>55473442
eliminate the teacher's union
>>55477675
And yet American universities are better than German universities
What does that say about you, Hans?
>>55478134
We said improve, not destroy. Who the fuck wants to be a teacher and be paid absolute shit?
>>55477661
So your contention is that fifth graders should be taught to make assumptions, contrary to the the accepted rules of mathematics?
The drawing is inconsistent.
So has anyone tried to use the law of sines to determine all of the angles of the two triangles, and then use those angles to find the exact length of all of the sides of said triangles? Then you could just multiply the legs of the triangles (not the hypotenuse) by each other, and then add them to the area of the rectangle.
Oh, and technically, you seem to get the same answer if you solve for the area by using the Pythagorean theorem and the law of sines...
Which is A=91.2 units^2
>>55476266
You can't solve it.
>>55478472
I've tried it.. its still inconsistent, because the top cant be 12
(6,245+6,245+12) is not equal 16
>>55477155
>>55478472
You don't know any of the angles, the triangles on the sides are not right triangles.
>>55477155
your communist roots are showing slavbro
commies were terrible at a whole lot, but they were good at math
indeed, that shape cannot exist
>>55478798
Then 12 is not perpendicular to 16 so it's not a trapezoid so you can't solve it like one you little bitch.
>>55476266
Can't be solved as far as I can tell.
I got 20+30+a+b=180 and10+a+b=180.
The red numbers are given, and the green are what I figured for the other angels making some assumptions.
>>55477353
>not drawn to scale
In what units exactly?
>>55478282
Then turn teaching into a regulated field like medicine. 10 years of rigorous training and harsh entrance exams to become a teacher.
Cmon /pol/ its easy
>>55478095
can anyone point out how this is incorrect?
>>55479018
>implying Americans wouldn't be to paranoid to give something regulations
>>55473442
That's not what Common Core is, though, and enough information is provided that area is soluble.
>>55473442
What's wrong with this pic? The area is 70, too easy.
>>55476042
You do understand you are the joke in the OP right?
>Drawing is impossible
>Who the fuck cares
>THANKS COMMON CORE
>>55479088
Because if 12 is perpendicular to 16 then the 5/2/8 triangle is a right angled triangle.
If it is, then it is subject to Pythagoras's theorem.
Pythagoras's theorem states that 8^2-5^2 = the square of the base.
It does not equal 4, it equals 39, so the base is not 2. If you can't see that it's retarded I question whether you went to school past age 10.
>>55479088
>>55479255
The numbers they give mean the two long sides cannot possibly be parallel. Geometrically impossible.
>>55478946
I wasted too much time on this.
pic related, this is the shape in real proportions
>>55475807
This
I got the same answer
The problem is its not a possible shape given the dimensions
>>55473442
Switch from funding education using property taxes to some other tax that doesn't depend on property values. Funding schools based on the richness of their surrounding neighborhoods is just making the whole poor people are dumber problem worse.
Require more rigorous training to be able to teach in schools. It's arguable one of the most socially important jobs in existence so I'm not sure why we sometimes let shitheads get away with doing it. The unions and tenures don't help.
Create a tiered system where kids can learn at a better pace. Instead of smart kids being bored out of their minds and dumber kids having no idea what's going on, everyone can learn to their own abilities.
Stop teaching to tests and teach to subject matter. Incorporate more life skills like finance and less "how to bubble in the right answer 101. "
ITT: Proof that 4chan cannot math
>>55473442
12 times 16 then divided by 2, then multiply by 5? Not that hard?
>>55479327
>>55479296
the question is not is this shape possible, but what is the area of the shape. if you answered anything other than 70 you would get an F because the point of the basic math problem is to demonstrate skills with math at an elementary level using basic shapes and simple formulas
>>55479494
>implying it's a trapezoid of height 5
Look closer. It's not drawn accurately.
>>55476266
Can't be solved senpai. You end up with ∠BDE=0°
>>55475585
>he thought it was 70
>>55479494
Try Pythagorean theorem on those triangles
If you dont get 2, the shape is impossible given the dimensions
>>55479584
But if they think too hard theyll get it wrong
Pretty sure thats the point of the OP
>>55476763
WEED
>>55474950
>expecting people to remember formulae for shit they don't need to find out on a regular basis
Another shitpost on the boardy, guv'nah
>>55473442
I don't get it I went through school all pre common core, what's wrong with this problem? The answers 70 and there didn't seem to be any weird shit?
>>55473442
a visual for you dumb cunts
>>55479592
>implying the illustration is more important than the numbers.
Good luck with vectors by looking at the illustrations.
>>55479212
>>55479255
It's an unsolvable problem. That shape is impossible. Sure it teaches kids the concept, but they aren't being taught about when they will need to use this math in the future. They are being propeely taught when they can't recognize the situations they will need to use these concepts. This system is expecting kids to fail and letting them
>(sqrt39) + (sqrt39) + 12 = 16
>>55479765
8 is longer than 12
>>55473442
LEGITIMATE SOLUTION
106 SQUARE UNITS
NOW PLEASE SHUT UP
>>55479819
*Aren't being properly taught
>>55474805
Interesting, but when was the "academic turning point"? The 60's? Sure, compulsory education is bad in the way we've seen, but at least back then our young people were learning, right? As opposed to the utter retardation and brainwashing that kids have to go through today.There has to be a way we can go back to something similar to what we used to have.
>>55474239
>little johnny wants to cnc
>little johnny is 15
>has 0 real world experience
you know the dude you went to high school whos 30 still trying to get his rap deal? yeah thats what all our cnc programmers become.
>>55479980
If there is a way if will never be implemented.
>>55479782
You do realize that even without looking at the picture, its still not possible for a trapezoid to have those dimensions right?
>>55479782
that isn't the point you lassez-faire cunt
the point is that dumb/lazy retards are in positions that design questions to test our children
how will future generations not be more retarded than the last when children taught by fucking retards grow up to be even bigger retards who still fill the old retards' positions?
the standards have been lowered across the board in every discipline
singapore will overlap the west and europe as well in intelligence and academia rankings, and our countries will cover everything up by changing the ranking criteria, meanwhile the country gets dumber and dumber and eventually collapses when all the jew money leaves for the emerging economies while we all sink with our ships
>>55476266
a can be anything from 0 to 130. Angle EDB=130-a, angle DEC=150-a, angle BCA=a+10. These equations place no limit on the value of a. Can easily solve using linear algebra once you have a system of equations.
>>55479036
There is no way your functions represent that shape. Even if they did, your bounds would be off.
Nice job on the integration though.
91.225
>>55473442
>image
The only problem I would have is if I should just write the result or dumb it down a lot with an explanation.
>>55479944
You're calculating a triangle dumb-ass
it will confuse '8' with its actual height.
>>55480460
>triangle
*rectangle
>>55480500
What are you even talking about? It's a quadrilateral with the given side lengths, not a rectangle. You wouldn't get 106 if it was a rectangle.
>>55477646
this guy gets it.
Fun fact - NASA discovered a giant system of fissures on some moon or something, that form a perfect square. They assumed it was from a meteor impact creating magma, which then cooled a cracked. However, when this happens, it produces hexagons, due to some kind of physics shit. But because the area was so huge, the curvature of the planet had to be taken into account, and it formed a square instead, but with larger than normal angles.
don't educate colors and women.
>>55480751
Interesting as fuck.
Look /pol/ i know youre going to disagree with me on this but hear me out.
The dotted line in the problem is just that... Dotted. Meaning slightly less clear than the other ones. You could say its blurred and therefore rape.
So if you just remove rape from the equation then math is easy!
>>55473442
The answer is obviously gender equality.
>>55480726
Actual height is 5.
Actual heights are right angles, not 45 or whatever acute angle.
>>55481054
see
>>55479773
>>55479355
The height actually being 5 is inconsistent with the rest of the problem so I threw it out.
>>55473494
I don't get why people are so obsessed with manufacturing jobs. They are low tier employment that is slowly being phased out in the face of cheap foreign labour and mechanization. Sure let kids work at factories or whatever but our education system should start leaning more towards a tertiary sector economy assuming the average individual will work in a field like engineering, programming, teaching, human resources, marketing, law etc. Jobs that require specific knowledge instead of ten minutes of a guy showing you how to assemble one part of a car that you will do for 8-12 hours a day.
>>55481552
most people aren't going to be capable of IQ demanding fields. We need something for the underclass like construction, manufacturing, etc
The line that is measured 5 is not explicitly stated as the altitude, so to make this a trapezoid we have to assume that it is not perpendicular to the base
Therefore this problem is unsolvable with the given information as far as I am aware
>>55482076
my mistake, it is solvable if you find your own altitude with the pythag formula
>>55475458
easy shit
quotient rule
product rule
>>55482130
ok
>sqrt(8^2-2^2)=h
>h=2*sqrt(15)
>avg b=(16+12)/2=14
>14*2*sqrt(15)
28*sqrt15 is the answer
>>55473442
With fire
>>55473442
While i understand why this problem doesnt work dur to pythagorean theory, yhis was probably just a problem for students to practice their area calculating formula on.
It seems unreasonable to expect every microsoft word drawn problem to be evaluated in this way when it is clearly just for the sake of students learning
Area of a trapezium = ((a+b)÷2)×h
Hop off your high horses fags. We have far worse problems in the education area than to be worrying about these pedantic little issues.
We must regain dominance over the yellow man if we can hope to be masters of the world again.
>>55482076
see >>55479773
If you assume the 12 and 16 sides are parallel, there is no possible connection you can make between them that has a length of 5. Since the altitude is the shortest possible distance, any angle other than perpendicular will just worsen the problem.
>>55473442
5×16-(5×(16-12))/2=70
Jesus being dumb and common core are two different things.
>>55473442
Quarantine nigs back into their own schools, get rid of unions, get rid of leftist kike, crypto-kike, and good goy teachers and professors.
Most Importantly: end legal protection for college loans. Currently, if you declare bankruptcy, the only debt that can't be wiped out is college loan debt, hence colleges are awash in idiot nigs with low GPAs and shit degrees that ensure failure in life. By changing the laws so that bankruptcy can wipe out student debt loans, the colleges would be forced to hire actual professors and push valuable degrees while cutting back on idiot nig SJW quotas.
