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anonymous
 one year ago
ABCD is a trapezoid with AD = 5 ft, DC = 7 ft, and AB = 15 ft.
Find the area of the trapezoid.
A.) 30 ft2
B.) 33 ft2
C.) 44 ft2
D.) 55 ft2
anonymous
 one year ago
ABCD is a trapezoid with AD = 5 ft, DC = 7 ft, and AB = 15 ft. Find the area of the trapezoid. A.) 30 ft2 B.) 33 ft2 C.) 44 ft2 D.) 55 ft2

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435239996387:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i was thinking to multiply 7*5*15=525 cause you need to find the area then i was thinking maybe to add 7+5+15=27s so i did the easy way and did 5*7=35 so m thinking to estimate would be B is this good enough he for this one^?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did his help enough ? this ones a little confusing but i got it (B)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0area of a trapezoid = (1/2)(base1 + base 2)*height base 1 is AB, which is 15 base 2 is DC, which is 7 we don't know the height, but we can find it if we recognize the triangle ADE

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435240818264:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if u do 15*7=105 that's not an answer and if u try to do 5*15=75 so that wont work

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0I'm not done explaining, please let me finish...

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435240960751:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i was thinking (b) or (c) but you got to think if u do 15*7 or 5*15 it wont work then i did 5*7=35 so i went t the closest estimate and got 33 which is b

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0alright, so we know that the bottom is 15 and the top is 7, right? we can see from the diagram that a+b = 157, and since a and b are equal, we know that 2a = 8, and a = 4

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435241108023:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0using the pythagorean theorem, we see that (height)^2 + 4^2 = 25, so the height is 3 now, going back to the original equation... height = 3 base 1 = 15 base 2 = 7 area of a trapezoid = (1/2)(base1 + base 2)*height

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0it's usually better to calculate the exact answer, rather than estimating

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i actually used a calculator if u are trying to a smart one just letting u know :) i was making an expression nother word for something

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0^ that's not what I meant, what I meant was to actually use the correct formula instead of estimating the answer...
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