# Finding the length of a line from tilted squares

In this lesson, we will learn how to find the length of a line by using triangles and tilted squares.

#### 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 of the values shown below is a surd?

1/7

Q2.What is the area of the tilted green square, in square units?

2/7

Q3.What's the area of the square below, in square units?

3/7

Q4.What's the length of one side of the square shown below?

4/7

Q5.What's the area of the square below, in square units?

5/7

Q6.What's the length of one side of the square shown below?

6/7

Q7.Which of the following squares has a surd side length?

7/7

#### 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 of the values shown below is a surd?

1/7

Q2.What is the area of the tilted green square, in square units?

2/7

Q3.What's the area of the square below, in square units?

3/7

Q4.What's the length of one side of the square shown below?

4/7

Q5.What's the area of the square below, in square units?

5/7

Q6.What's the length of one side of the square shown below?

6/7

Q7.Which of the following squares has a surd side length?

7/7

# 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:

# Finding the length of a line from tilted squares

Exit Quiz

Q1.What is the length of the line below?

1/6

Q2.What is the length of the line below?

2/6

Q3.What is the length of the line below?

3/6

Q4.Which statement best describes the blue and red lines shown in the diagram?

4/6

Q5.What is the length of the missing side of the triangle, labelled n?

5/6

Q6.What is the length of the missing side of the triangle, labelled m?

6/6

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

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

# Finding the length of a line from tilted squares

Exit Quiz

Q1.What is the length of the line below?

1/6

Q2.What is the length of the line below?

2/6

Q3.What is the length of the line below?

3/6

Q4.Which statement best describes the blue and red lines shown in the diagram?

4/6

Q5.What is the length of the missing side of the triangle, labelled n?

5/6

Q6.What is the length of the missing side of the triangle, labelled m?

6/6

# Lesson summary: Finding the length of a line from tilted squares

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Dance