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In trapezoid ABCD, line AB is parallel to line CD, and AB < CD. The base CD has a length of 8. The legs AD and BC have lengths of 7, and the diagonal BD has a length of 9. Find the area of the trapezoid. The trapezoid is marked: A      B

                                                                                                                                    D                 C

 

I tried using diagonals to split the trapezoid into similar triangles, but I'm having trouble finding the area of the individual triangles. Could someone please assist me?

 Jul 2, 2020
 #1
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I solved it with Heron's formula! Please ignore this question :)

 Jul 2, 2020

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