Question 781552
The degree of each interior angle of a regular n-sided polygon can be found using the following formula: (n-2)(180o)/n 
Determine the measure of each interior angle of a regular polygon with twelve sides.
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Sum of the interior angles is (12-2)*180 = 10*180 = 1800
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Measure of each interior angle = 1800/12 = 150 degrees
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Cheers,
Stan H.
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