Find the number of sides of a polygon if the sum of it's interior angle is 1440°
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Step-by-step explanation:
The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440. We found this by using the formula (n-2)(180). Thus, to find the measure of each interior angle we simply divide the sum by the number of total sides in the polygon. 1,440/10 = 144.
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