# Identifying missing coordinates of shapes

In this lesson, we will find the missing coordinates for a vertex of a shape using knowledge of the other vertices.

#### 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 following happens when a shape is reflected by a line of reflection along the x-axis?

1/5

Q2.If a shape is reflected by a line of reflection along the x axis then which of the following is correct?

2/5

Q3.If a triangle has the coordinates (1,3), (1,4), (2,3) and after a transformation becomes (1,-3), (1,-4) and (2,-3), which if the below have happened?

3/5

Q4.If a triangle which has the coordinates (1,-1), (1,-3) and (3,-3) is reflected by a line of reflection along the y-axis, what will it's new reflected coordinates be?

4/5

Q5.A triangle with coordinates (-2,-2), (-2,-4) and (-4,-4) is reflected first by a line of reflection along the x-axis, and then reflected by a line of reflection along the y-axis, what will the new coordinates be?

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.Which of the following happens when a shape is reflected by a line of reflection along the x-axis?

1/5

Q2.If a shape is reflected by a line of reflection along the x axis then which of the following is correct?

2/5

Q3.If a triangle has the coordinates (1,3), (1,4), (2,3) and after a transformation becomes (1,-3), (1,-4) and (2,-3), which if the below have happened?

3/5

Q4.If a triangle which has the coordinates (1,-1), (1,-3) and (3,-3) is reflected by a line of reflection along the y-axis, what will it's new reflected coordinates be?

4/5

Q5.A triangle with coordinates (-2,-2), (-2,-4) and (-4,-4) is reflected first by a line of reflection along the x-axis, and then reflected by a line of reflection along the y-axis, what will the new coordinates be?

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:

# Identifying Missing Coordinates of Shapes Quiz

Q1.Which of the following statements is correct?

1/5

Q2.(5,4), (9,8) and (5,8) are the coordinates of three vertices of a square, what are the coordinates of the last?

2/5

Q3.(1,-10), (9,-10) and (9,-4) are the coordinates of three vertices of a rectangle, what are the coordinates of the last?

3/5

Q4.(-4,6) and (-2,8) are the coordinates of two vertices of a square, what are the coordinates of the remaining two vertices?

4/5

Q5.(7,6) and (13,3) are the coordinates of two vertices of a right angled triangle, what are the two possibilities of the coordinates of the third?

5/5

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

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

# Identifying Missing Coordinates of Shapes Quiz

Q1.Which of the following statements is correct?

1/5

Q2.(5,4), (9,8) and (5,8) are the coordinates of three vertices of a square, what are the coordinates of the last?

2/5

Q3.(1,-10), (9,-10) and (9,-4) are the coordinates of three vertices of a rectangle, what are the coordinates of the last?

3/5

Q4.(-4,6) and (-2,8) are the coordinates of two vertices of a square, what are the coordinates of the remaining two vertices?

4/5

Q5.(7,6) and (13,3) are the coordinates of two vertices of a right angled triangle, what are the two possibilities of the coordinates of the third?

5/5

# Lesson summary: Identifying missing coordinates of shapes

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga