SOLUTION: Find the base of a trapezoid with an area of 20 square inches,a height of 4 inches,and a top length of 3 inches

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Question 819039: Find the base of a trapezoid with an area of 20 square inches,a height of 4 inches,and a top length of 3 inches
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

trapezoid with an area of 20 square inches,a height of 4 inches,

and a top length of 3 inches.   Find the base green%28x%29

 

 %28%283in+%2B+x%29%2F2%294in+=+20in%5E2  ****

      6 + 2x = 20

          2x = 14

           x = 7", the length of the base

CHECKING our answer***

 %28%283in+%2B+7in%29%2F2%294in+=+20in%5E2