Regular polygon

Regular polygon

 Regular polygons have all sides equal and all angles equal.

Angle formulas for regular polygons
 

             

n – the number of sides
Area and perimeter of regular Polygons

Area = (n × a × apothem) / 2

r – apothem is the radius of the inner circle
n  –  number of sides
a –  length of side

 Perimeter=n × a