Suppose that ABCD is a trapezoid in which AD is parallel to BC. Given AC is perpendicular to CD, AC bisects ∠BAD, and the area of ABCD is 20 , then compute the area of triangle ACD.
+1641 Suppose that ABCD is a trapezoid in which AD is parallel to BC. Given AC is perpendicular to CD, AC bisects ∠BAD, and the area of ABCD is 20, then compute the area of triangle ACD.
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AB = BC = 1/2 (AD)
[ACD] = 2/3 (20)
