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EXOEXOEXO
 one year ago
find the area of the trapezoid
EXOEXOEXO
 one year ago
find the area of the trapezoid

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EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436916462396:dw

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge~\rm~A=\frac{ a+b }{ 2}h\]

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1Can you figure out what a b h are?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1remember that a trapezoid has 2 bases

EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.0the answer choices are a) 44 b) 48 c) 90 cd) 100

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1hmmmm how did you get 100?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge~\rm~A=\frac{ a+b }{ 2}h\]Can you figure out what a b h are?

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1@jdoe0001 he meant the answer choice :P

EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.0a and b are the bases of the trapezoid

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1right what are their values?

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1hint dw:1436917508346:dw

EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.08+14/2=22/2=11 5x11=55

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436917675313:dw

EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.0how do you find the height?

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1well.. I should have put the tickmark on the side itself =( dw:1436917793358:dw

pooja195
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436916989730:dw look at this thing that @jdoe0001 drew

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2we have a bit of a misunderstanding here, the height isn't 5 dw:1436917040544:dw

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1if the two slanted sides, are equal, that means, the angles they make above and down below, are also equal and if those angles are equal, the "gaps" at the bottom are also equal

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2now, if we take one of the triangles on the side, we can solve for height using the Pythagorean theorem dw:1436917106452:dw

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.1hehee anyhow @EXOEXOEXO Vocaloid just pull "3" out of his pocket there any ideas where he got that from?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2oh, right I should probably explain where the 3 came from, haha dw:1436917232181:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2(I drew a rectangle connecting the bottom of the trapezoid to the top of the rectangle, giving us 8 + 2x = 14, meaning that each of the little segments is 3) but yeah, h = 4, and now you can go back to the formula

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1I found a formula for the height here: http://www.1728.org/quadtrap.htm We will have to call: a = 14 b = 5 c = 8 d = 5 height^2 = (a+b+c+d)*(a+b+c+d)*(abc+d)*(a*bcd) / 4 * (a c)^2 height^2 = (16*4*6*6) / 4 * 36 height^2 = 16 height = 4

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Hey hey we agree about the height !! :)

EXOEXOEXO
 one year ago
Best ResponseYou've already chosen the best response.0thanks everyone for helping me!

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Area = [(a+c) / 2] * height Area = [(14 + 8) / 2] * 4 Area = 44

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1'sokay  glad to help out :)
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