# How to find the perimeter of a trapezium with examples

The perimeter of a trapezium is the sum of all the lengths of its four sides. A trapezium is four side plane figure which has two opposite sides parallel and unequal. On this page, we will discuss the perimeter of a trapezium in detail.

## What is the perimeter of a trapezium?

The perimeter of a trapezium is the sum of all the lengths of its four sides. Since the lengths of the four sides of a trapezium are equal we simply add the lengths of each of the four sides. Therefore, the perimeter of a trapezium is = a + b + c + d.

## How to find the perimeter of a trapezium?

To find the perimeter of a trapezium follow the simple steps below:

• Make sure all the units of measurement of the four sides are the same.

• sum all the lengths of the four sides.

• simplify to get the perimeter of a trapezium. Let’s understand more by working on some examples.

Example 1. Find the perimeter of the trapezium below

Solution

The perimeter of a trapezium is = |AB| + |BC| + |CD| + |DA|

= 8cm + 7cm + 18cm + 10cm

= 43cm

Example 2. Find the perimeter of the trapezium below

Solution

The perimeter of a trapezium = |PO|+|ON|+|NM|+|MP|

= 5m + 10m + 6m + 8m

= 29m