SOPHIA will be down Tuesday, January 27, 2015 at 3:00 AM (CDT) for a little housecleaning. We are sorry if this causes you any trouble. The outage should last less than 5 minutes.

Explore all our learning and teaching solutions

Got a Kanye-sized ego? → Test it on our Ego-Meter
Area and Perimeter of Irregular Shapes

Area and Perimeter of Irregular Shapes

  • Report
Author: Kelsey Hennen

This packet covers how to find the area and perimeter of irregular shapes.

See More
Test Yourself

Show your understanding of this concept by correctly answering 3 questions.

Got it

Steps to find the perimeter

1. Find all of the missing sides of the irregular shape by either:

- comparing parallel sides

- breaking the shape down into smaller shapes

2. Find the sum of all of the outside edges.

Perimeter Practice

Step-by-step examples of how to find the perimeter of irregular shapes.

Steps to find the area

1. Break down the irregular shapes into smaller shapes.

2. Find the edges of the smaller shapes.

3. Calculate the area of each small shape.

4. Add all of the areas of the small shapes (the sum will be the area of the irregular shape).

College Algebra

Do the math.
Our College Algebra Course is only $329.

Sophia's online courses not only save you money, but credits are also eligible for transfer to over 2,000 colleges and universities.*