The Perimeter of Regular N-polygon Calculator is an online tool that calculates the perimeter of any regular polygon, provided the side-length is given. CoolGyan’S free calculator helps in solving mathematical problems in a simple and quick way.

## Perimeter of Polygon

A polygon is a closed two dimensional shape, made up of straight lines connected end to end. The straight lines connected to each other through nodes are called sides of polygon and the point where the two sides joins, is called vertex of polygon. A regular polygon has all its sides equal in length and all its angles equal in measure.

The perimeter of an n-sides polygon is equal to the sum of all its sides.

Perimeter of N-sided Polygon = Sum of all the sides

If a regular polygon has 5 sides then the perimeter is given by:

Perimeter of 5-sided polygon = 5 (side-length)

Hence, we can calculate the perimeter of any regular polygon, by knowing its side-length.

### How to find Perimeter of Regular N-polygon using Calculator?

To find the perimeter of n-sided regular polygon, using calculator, follow the steps given here.

Step 1: Enter the value of number of sides and length of sides of polygon, in the respective input fields

Step 2: Click the “Solve” button to get result

Step 3: The perimeter of the polygon will appear in the output field

### Solved Examples

Q.1: Find the perimeter of equilateral triangle whose side length is 5cm.

Solution: Since equilateral triangle is also a regular 3-sided polygon, therefore,

Perimeter = 3 x (side-length)

P = 3 x 5 = 15cm

Q.2: Find the perimeter of a square whose side-length is 4cm.

Solution: Since, a square is also a regular polygon having four equal sides, therefore,

Perimeter = 4 x (side-length)

P = 4 x 4 = 16 cm

### Practice Problems

- Find the perimeter of a regular hexagon with side-length equal to 3 cm.
- If side-length of a pentagon is 4.5 cm, then find its perimeter.