Anything you like. Any single interior angle of a polygon is indeterminate - the only constraint is on the sum of all the interior angles.
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find the sum of the measures of the interior angles of 13-gon.
Each interior angle measures: 152o 18' 27.69''
GEF is the alternate interior angle of angle hge.
Exterior angle + interior angle = 180 Hence Interior Angle = 180 - Exterior Angle The Exterior Angle = n(No. of sides ) / 360 Substituting Interior Angle = 180 - (n/360) Interior Angle = 180 - (18/360) Interior Angle = 180 - (1/20) Interior Angle = 179.95 degrees.
Each interior angle of a decagon is 144 degrees.An exterior angle is 180 - measure of interior angle.There exterior angle of decagon is 180-144which is equal to-36