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# I GOT SQRT 40 BUT IT DOESNT WORK... I would appreciate it if someone helped me work this out!

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Find the length of the missing side of the trapezoid below.

I GOT SQRT 40, BUT IT SAYS MY ANSWER IS WRONG ;-;

I've been re doing this problem for the past 30 minutes, and I still keep getting THE SAME ANSWER.. :(

I would appreciate the help alot!

Apr 14, 2023

#1
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So basically, this is what I did to get sqrt 40..

I added a line to creat right triangle with base 3 and hypotnuse 4

$$3^2+b^2=7^2$$

9+b^2=49

49-9=b

answer would be $$\sqrt{40}$$

But somehow its wrong so idk :(

someone help! :(

thnx!

Apr 14, 2023
#4
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The missing side is definitely: sqrt(40) = 6.325 - which gives an area of trapezoid as: 41.11

The two missing angles are: 64.62  and  115.38

Sum of the 4 angles = 90 + 90 + 64.62 + 115.38 = 360 degrees.

Perimeter ==5 + 7 + 8 + 6.325 = 26.325

Guest Apr 14, 2023
#2
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Sorry meant hypotnuse 7!

Apr 14, 2023
#3
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The missing length is sqrt(42).

Apr 14, 2023