The sum of the angles of a polygon can be calculated with the formula [[$ (n - 2) \cdot 180°$]] , where [[$n$]] is the number of angles.

What is the sum of the angles of the following polygons in degrees?

a) 7-gon


b) 8-gon


c) 10-gon


d) 11-gon


e) 12-gon