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For interior, the angle sum is 540 degrees, for exterior, the angle sum is 1260 degrees.

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Partially correct!

The sum of the exterior angles of any polygon is 360 degrees. The exterior angle is the supplement of the interior angle (180 - interior), NOT the reflex angle (360- interior). So the sum given 1260, which is based on the reflex angles is incorrect.

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13y ago

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