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A polygon has 13 sides calculate the sum of the interior angle measure of each polygon
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A polygon has 13 sides calculate the sum of the interior angle measure of each polygon

User Basil Kosovan
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The exterior angle = 360 / 13 = 27.692 degrees

So interior angle = 180 - 27.692 = 152.308

So the sum of interior angles = 13 * 152.308 = 1980 degrees
User Czarina
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