Find the sum of interior angles of a polygon with 15 sides.
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Each triangle has an angle sum of 180 degrees, so the sum of the interior angles of the 15-gon must be 13 × 180 = 2340 degrees. Since the 15-gon is regular, this total is shared equally among the 15 interior angles. Each interior angle must have a measure of 2340 ÷ 15 = 156 degrees
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Answer:
2340°
Step-by-step explanation:
angles of a polygon with n sides = (n-2)×180
angles of a polygon with 15 sides= (15-2)×180
=13×180
=2340°
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