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OpenStudy (anonymous):
what is the sum , in degrees , of the measures of the interior angles of a pentagon ? 1) 180 2) 540 3) 360 4) 900 why
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OpenStudy (anonymous):
A pentagon has 5 sides, and can be made from three triangles, so you know what ... ... its interior angles add up to 3 × 180° = 540° And if it is a regular pentagon (all angles the same), then each angle is 540° / 5 = 108°
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