Question

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Answer 1

Explanation:

Area of trapezoid ABCD

`= (1)/(2) * (27 + 37) * x \\ \\ \therefore \: 480 = (1)/(2) * (27 + 37) * x \\ \\ \therefore \: 480 * 2 = 64 x \\ \\ \therefore \: 960 = 64 x \\ \\ \therefore \:x = (960)/(64) \\ \\ \therefore \:x =15 \: cm \\ \\ perimeter = 37 + 27 + 15 + 15 \\ = 64 + 30 \\ = 94 \: cm`