# Perimeter of regular decagon | Formula & Example

Perimeter is the sum of all the sides of a closed figure
A regular decagon is a ten-sided polygon whose all ten sides are equal in length.
Perimeter of Regular Decagon is equal to ten times the length its side.
Perimeter of Regular Decagon = 10 x Length of each side

Question 1

Find the perimeter of a regular decagon of side 3.6cm?

Explanation

A regular decagon is a ten-sided polygon whose all ten sides are equal in length.
Length of a regular decagon = 3.6
Perimeter of  regular decagon = (10 x Length of each side)units
= (10 x 3.6)cm
= 36cm

Question 2

Find the perimeter of a regular decagon of side 5.7cm?

Explanation

A regular decagon is a ten-sided polygon whose all ten sides are equal in length.
Length of a regular decagon =5.7
Perimeter of regular decagon = (10 x Length of each side)units
= (10 x 5.7)cm
= 57cm

Question 3

Find the perimeter of a regular decagon of side 4.2cm?

Explanation

A regular decagon is a ten-sided polygon that has all ten sides equal in length
Length of a regular decagon =4.2
Perimeter of a regular decagon =(10 x Length of each side)units
=(10 x 4.2)cm
=42cm

Question 4

Find the perimeter of a regular decagon of side 9.6cm?

Explanation

A regular decagon is a ten-sided polygon that has all ten sides equal in length
Length of a regular decagon =9.6
Perimeter of a regular decagon =(10 x Length of each side)units
=(10 x 9.6)cm
=96cm

Question 5

Find the perimeter of a regular decagon of side 12.8cm?

Explanation

A regular decagon is a ten-sided polygon that has all ten sides equal in length
Length of a regular decagon =12.8
Perimeter of a regular decagon =(10 x Length of each side)units
=(10 x 12.8)cm
=128 cm

### 1 thought on “Perimeter of regular decagon | Formula & Example”

1. The perimeter of a decagon is 10x its area. Adecagon is a polygon that has 10 sides. If its area is 67.96 square centimeters, what is the length of each side if the polygon is regular?