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OpenStudy (anonymous):
What is the sum of the measures of the interior angles of a regular polygon where a single exterior angle measures 30°?
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OpenStudy (anonymous):
the sum of the exterior angles of a polygon is 360, so this has 12 sides. The sum of the interior sides is (n - 2) 180 which is (12 - 2) 180 = 1800. OR, the adjacent interior angle is 150 and there are 12 int angles so the product is 12(150) = 1800.
OpenStudy (anonymous):
what is the value of x
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