# Polygon Incircle Calculator

Posted by Dinesh onThis calculator calculates the **inradius, area of the incircle, area of the polygon, ratio of the area** using enter the number of sides of the polygon(minimum 3), enter the length of side of the polygon values.

## Polygon Incircle Calculation

### Formula:

Inradius = l / 2 * tan(PI/n)

Area of the polygon = 0.5 * n * l * r

Area of the Incircle = PI * r^{2}

n = Number of sides of the polygon,

r = Inradius,

l = Length of the side of the polygon