Degree of an angle in a regular octagon?

The sum of angles of a regular polygon in degrees = 180(n - 2), where n is the number of sides of the regular polygon. So, where n = 8 the sum of angles in degree = 180(8 - 2) = 180(6) = 1,080

Angle in degree = (The sum of angles in degree)/n

Angle in degree = (1,080)/8 = 135 Thus, in a regular octagon, the degree of an angle is 135.