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the sum of interior angles of a regular polygon is equal to five times the sum of its exterior angles.find the measure of each of its interior angle |
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Answer» Answer: 12 Step-by-step explanation: The sum of the exterior angles is ALWAYS 360 degrees. So, sum of the interior angles is 5*360 = 1800 degrees. Let n be the NUMBER of sides:
(n-2)180 = 1800 n-2 = 10 n = 12 sides |
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