# Apply Pythagoras' Theorem to two triangles

In this lesson, we will apply Pythagoras' Theorem to two triangles that share a common side.

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.Find the length labelled x.

1/3

Q2.Find the length labelled x.

2/3

Q3.Find the area of the triangle.

3/3

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.Find the length labelled x.

1/3

Q2.Find the length labelled x.

2/3

Q3.Find the area of the triangle.

3/3

# 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.

Quiz:

# Apply Pythagoras' theorem to two triangles

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

Q1.Find the length marked x.

1/3

Q2.Find the length marked x.

2/3

Q3.Find the length marked x.

3/3

Quiz:

# Apply Pythagoras' theorem to two triangles

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

Q1.Find the length marked x.

1/3

Q2.Find the length marked x.

2/3

Q3.Find the length marked x.

3/3

# Lesson summary: Apply Pythagoras' Theorem to two triangles

## 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