find the are of following polygons.
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What is the area of a polygon I forgot
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(A) Area of trapezius AFCB + FECD = 1/2Sum of parallel side× h
= 1/2 × 10 + 16 × 3 + 1/2 × 16 + 12 × 5
= 1/2 × 26 × 3 + 1/2 × 28 × 5
= 13 × 3 + 14 × 5
= 39 + 70
= 109cm ^2
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