if a polygon has 53 sides, what will the total number of degrees (i,e. the total number of interior angles) in this polygon

Answer 1

Sum of measures of interior angles of a polygon of n sides = (n - 2)* 180 deg

(53 - 2)*180 = 51*180 = ?

Answer 2

If an exterior angle of a polygon is 135, what is the measure of its interior angle