what is the sum of all slide of closed figure
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Sum of all sides of a closed figure is known as its perimeter.
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Answer:
If you count one exterior angle at each vertex, the sum of the measures of the exterior angles of a polygon is always 360°.
A regular polygon is a flat shape whose sides are all equal and whose angles are all equal. The formula for finding the sum of the measure of the interior angles is (n - 2) * 180. To find the measure of one interior angle, we take that formula and divide by the number of sides n: (n - 2) * 180 / n.
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