SOLUTION: A trapezoid has three sides of length 4 inches and one side of length 8 inches. What is its area?

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Question 229263: A trapezoid has three sides of length 4 inches and one side of length 8 inches. What is its area?
Answer by rfer(2688) About Me  (Show Source):
You can put this solution on YOUR website!
find the heigth
16-4=12
sq rt of 12=3.46
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A=h((b1+b2)/2)
A=3.46(12/2)
A=3.46*6
A=20.76 sq in