# Coordinates and shapes: To solve practical problems involving circles

In this lesson, we will identify relationships between circle parts and then solve problems involving circles.

#### 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.Which part of the circle does the arrow represent?

1/5

Q2.Examples of which part of the circle are shown below?

2/5

Q3.Examples of which part of the circle are shown below?

3/5

Q4.Use the given radius to calculate the diameter of the circle.

4/5

Q5.Use the given diameter to calculate the radius of the circle.

5/5

#### 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.Which part of the circle does the arrow represent?

1/5

Q2.Examples of which part of the circle are shown below?

2/5

Q3.Examples of which part of the circle are shown below?

3/5

Q4.Use the given radius to calculate the diameter of the circle.

4/5

Q5.Use the given diameter to calculate the radius of the circle.

5/5

# 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.

#### Unit quizzes are being retired in August 2023

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

# Final Quiz

Solve problems involving circles

Q1.What is the approximate circumference of this circle?

1/4

Q2.What is the approximate circumference of this circle?

2/4

Q3.3 circles with radius 3 cm are placed next to each other. What is the length of the row?

3/4

Q4.4 circles with diameter 4.1 cm are placed next to each other. What is the length of the row?

4/4

#### Unit quizzes are being retired in August 2023

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

# Final Quiz

Solve problems involving circles

Q1.What is the approximate circumference of this circle?

1/4

Q2.What is the approximate circumference of this circle?

2/4

Q3.3 circles with radius 3 cm are placed next to each other. What is the length of the row?

3/4

Q4.4 circles with diameter 4.1 cm are placed next to each other. What is the length of the row?

4/4

# Lesson summary: Coordinates and shapes: To solve practical problems involving circles

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga