A regular polygon is a polygon where all the sides are the same length and the angles are the same measurement.
n represents the number of sides in the polygon
Like a triangle has three sides. So for a triangle n = 3
A quadrilateral has four sides. So for a quadrilateral n = 4
Interior angle sum formula
Single regular polygon interior angle formula
Exterior angle sum (exterior angles always add up to the same number, 360°)
Single regular polygon exterior angle formula
