# Apothem of Pentagon Calculator

Pentagon is a geometrical shape with 5 sides and is also referred to as five-sided polygon. Apothem is the line from the center point of the pentagon to the middle of one of its sides. Apothem is the line drawn from the midpoint of one of the sides to the center of pentagon. Here is the free online Apothem of pentagon calculator for you to calculate the apothem of a pentagon. This apothem of pentagon calculator requires side length measurement to calculate the area of apothem.

## Calculate the Apothem of a Pentagon

Pentagon is a geometrical shape with 5 sides and is also referred to as five-sided polygon. Apothem is the line from the center point of the pentagon to the middle of one of its sides. Apothem is the line drawn from the midpoint of one of the sides to the center of pentagon. Here is the free online Apothem of pentagon calculator for you to calculate the apothem of a pentagon. This apothem of pentagon calculator requires side length measurement to calculate the area of apothem.

Code to add this calci to your website

#### Formula:

Apothem of Pentagon = a / [2 tan(π / n)]
**Where,**
a = Side length
n = 5
### Example:

Calculate the apothem of a pentagon with 5 sides and its sides are 20 cm in length.

#### Solution:

Apothem of pentagon = 20 / [2 tan(180 / 5)]

= 13.7638 cm.