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OpenStudy (anonymous):
What is the sum of the measures of the angles of a 25-gon?
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OpenStudy (solomonzelman):
assuming it is a regular polygon, \[\frac{180(n-2)}{n}\]is the formula for each angle, and the formula for the sum of all angles is just, \[180(n-2)\]Where n is the number of sides.
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