# Calculate the perimeter of composite shapes

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

#### 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

#### 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

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

# Lesson summary: Calculate the perimeter of composite shapes

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga