# Calculating angles within a shape (Part 2)

In this lesson, we will learn about different types of quadrilaterals and how to calculate angles within 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 type of triangle has 3 different angles and 3 different sides

1/5

Q2.What do angles inside a triangle add up to?

2/5

Q3.What are the size of the angles within an equilateral triangle?

3/5

Q4.What is the size of angle a?

4/5

Q5.What is the size of angle b?

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 type of triangle has 3 different angles and 3 different sides

1/5

Q2.What do angles inside a triangle add up to?

2/5

Q3.What are the size of the angles within an equilateral triangle?

3/5

Q4.What is the size of angle a?

4/5

Q5.What is the size of angle b?

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:

# Calculating angles within a shape 2: quadrilaterals

Q1.What type of quadrilateral has 4 equal sides and 4 equal angles?

1/5

Q2.What type of quadrilateral has 4 equal sides and 2 pairs of parallel sides?

2/5

Q3.What type of quadrilateral has 2 pairs of equal angles and 2 pairs of equal parallel sides?

3/5

4/5

Q5.What is the size of the missing angle in this quadrilateral with angles: 90°, 120°, 40°, ?

5/5

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

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

# Calculating angles within a shape 2: quadrilaterals

Q1.What type of quadrilateral has 4 equal sides and 4 equal angles?

1/5

Q2.What type of quadrilateral has 4 equal sides and 2 pairs of parallel sides?

2/5

Q3.What type of quadrilateral has 2 pairs of equal angles and 2 pairs of equal parallel sides?

3/5

4/5

Q5.What is the size of the missing angle in this quadrilateral with angles: 90°, 120°, 40°, ?

5/5

# Lesson summary: Calculating angles within a shape (Part 2)

## 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