180*(13-2) = 180*11 = 1980 degrees.
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For a pentagon, which has 5 sides, you can use the formula: Total Sum of Interior Angles = (5 - 2) * 180 degrees Total Sum of Interior Angles = 3 * 180 degrees Total Sum of Interior Angles = 540 degrees So, the total sum of the interior angles in a pentagon is 540 degrees.
360 degrees
No - the interior angles of a polygon must total at least 360 degrees.
360 degrees lad
900 degrees