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
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?