Four interior angles of a pentagon measure 156°, 72°, 98°, and 87°. What is the measure of the final interior angle?
2 answers:
The final interior angle is 127<span>°. Pentagons' interior angles add up to 540, so you add the ones you know together, subtract the big number from 540, and you have your answer. </span>
127 because when you add up 156,72,98,87 it equals 413 and for a pentagon's interior angle it equals 540 so 540-413
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L = 20, W = 10, H = 8
2(h × W) + 2(h × L) + 2(W × L)
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