Calculate the perimeter of composite shapes

In this lesson, we will learn how to calculate the perimeter of composite shapes.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the perimeter of this shape?

1/4

Q2.What is a composite shape?

2/4

Q3.The perimeter of a regular octagon is 88 mm. How long is each side?

3/4

Q4.What is the perimeter of the shape below?

4/4

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the perimeter of this shape?

1/4

Q2.What is a composite shape?

2/4

Q3.The perimeter of a regular octagon is 88 mm. How long is each side?

3/4

Q4.What is the perimeter of the shape below?

4/4

Video

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Worksheet

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Lesson summary: Calculate the perimeter of composite shapes

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