# Area of sectors

In this lesson, we will learn how to find the areas of sectors using a radius or diameter.

#### 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 area of a circle with radius 5cm to 1d.p?

1/5

Q2.What is the circumference of a circle with radius 8cm to 1d.p?

2/5

Q3.What is the diameter of a circle with a circumference 40m?

3/5

Q4.The area of a circle is 25 cm squared. What is the diameter

4/5

Q5.The area of a circle is 144 pi. What is the circumference?

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.What is the area of a circle with radius 5cm to 1d.p?

1/5

Q2.What is the circumference of a circle with radius 8cm to 1d.p?

2/5

Q3.What is the diameter of a circle with a circumference 40m?

3/5

Q4.The area of a circle is 25 cm squared. What is the diameter

4/5

Q5.The area of a circle is 144 pi. What is the circumference?

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:

# Area of Sectors

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If the circumference of a circle is 12pi, what is the area?

1/5

Q2.What is the area of this sector?

2/5

Q3.What is the area of this sector to 1 decimal place?

3/5

Q4.What is the area of this sector to 1 decimal place?

4/5

Q5.What is the area of this sector to 1 decimal place?

5/5

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

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

# Area of Sectors

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If the circumference of a circle is 12pi, what is the area?

1/5

Q2.What is the area of this sector?

2/5

Q3.What is the area of this sector to 1 decimal place?

3/5

Q4.What is the area of this sector to 1 decimal place?

4/5

Q5.What is the area of this sector to 1 decimal place?

5/5

# Lesson summary: Area of sectors

## Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Dance