# Lines of symmetry

In this lesson, we will learn about lines of symmetry and the way to determine how many lines of symmetry a shape has.

#### 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 order of rotational symmetry of a shape?

1/6

Q2.What is the order of rotational symmetry of this shape?

2/6

Q3.All shapes have an order of rotational symmetry of at least?

3/6

Q4.A rectangle has rotational symmetry of order....

4/6

Q5.What is the order of rotational symmetry for this shape?

5/6

Q6.What is the order of rotational symmetry?

6/6

#### 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 order of rotational symmetry of a shape?

1/6

Q2.What is the order of rotational symmetry of this shape?

2/6

Q3.All shapes have an order of rotational symmetry of at least?

3/6

Q4.A rectangle has rotational symmetry of order....

4/6

Q5.What is the order of rotational symmetry for this shape?

5/6

Q6.What is the order of rotational symmetry?

6/6

# 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:

# Lines of symmetry quiz

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

Q1.Decide if the statements are always true, sometimes or never true: An irregular quadrilateral has 4 lines of symmetry.

1/6

Q2.Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is more than its number of sides.

2/6

Q3.Decide if the statements are always true, sometimes or never true: A regular polygon has as many lines of symmetry as it does sides.

3/6

Q4.Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is the same as its order of rotational symmetry.

4/6

Q5.How many lines of symmetry does a parallelogram have?

5/6

Q6.How many lines of symmetry does the shape below have?

6/6

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

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

# Lines of symmetry quiz

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

Q1.Decide if the statements are always true, sometimes or never true: An irregular quadrilateral has 4 lines of symmetry.

1/6

Q2.Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is more than its number of sides.

2/6

Q3.Decide if the statements are always true, sometimes or never true: A regular polygon has as many lines of symmetry as it does sides.

3/6

Q4.Decide if the statements are always true, sometimes or never true: The number of lines of symmetry a polygon has is the same as its order of rotational symmetry.

4/6

Q5.How many lines of symmetry does a parallelogram have?

5/6

Q6.How many lines of symmetry does the shape below have?

6/6

# Lesson summary: Lines of symmetry

## 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