Subtract the number of sides of the polygon by two then multiply it by 180
Formula:
Interior angle sum = (s-2) x 180 (With s being the number of sides the polygon has.
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The formula for finding the sum of all angles of a polygon is: N = number of sides (N-2)180 = The sum of all angles
(number of sides-2)*180 = sum of interior angles
It is the formula for finding the sum of the interior angles of a polygon:- (s-2)*180 = sum of interior angles
(number of sides - 2)*180 = total sum of interior angles
For all n-sided polygons: either (180n - 360) degrees or (2n -4) right angles