Question

If r and small r are radius of circumcircle and incircle of regular polygon of n sides then side length a is

Answer 1

Answer:

Step-by-step explanation:

The radius of the circumcircle of a regular polygon is exactly the same as the radius of the polygon. Radius is the distance from the center of a regular polygon to any vertex . Here is a formulae  to calculate;

All sides of a regular polygon are equal in length.

radius = s / 2 sin (180 /n )

where

s is the length of any sides

n is the number of sides

sin is the sine function