147 3/11
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(((2 x 11) - 4) x 90)/11 = ( 18 x 90)/11 = 147.27o (The total of the interior angles of an n-sided polygon is (2n - 4) right angles or 180n - 360 degrees)
The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. 1620 degrees
The answer is 11 sides If a polygon with 10 sides the sum of the interior angles are 1440° So 1440°+180°= 1620°
An 11 sided polygon is a undecagon.
If we are talking about the sum of the interior angles, the sum is (11-2)x180 degrees.This is 180x9 or 1620 degrees. The sum of the exterior angles is always 360 so that is why i assumed we were talking about the interior angles.Given a polygon with n sides, the sum of the interior angles is (n-2)x180 degrees.