Enlargements and Area

In this lesson you will describe and draw enlargements, observing the effect on the area.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Fill in the gap: We can enlarge shapes using a ___________.

1/8

Q2.When you enlarge a shape by a scale factor which of the following will change?

2/8

Q3.Decide if the following is true or false: An enlarged shape will always be bigger.

3/8

Q4.State the scale factor of enlargement for the transformation from A to B

4/8

Q5.State the scale factor of enlargement for the transformation from B to A

5/8

Q6.A is transformed to B. Which statement is correct?

6/8

Q7.A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 5?

7/8

Q8.A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 0.5?

8/8

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Fill in the gap: We can enlarge shapes using a ___________.

1/8

Q2.When you enlarge a shape by a scale factor which of the following will change?

2/8

Q3.Decide if the following is true or false: An enlarged shape will always be bigger.

3/8

Q4.State the scale factor of enlargement for the transformation from A to B

4/8

Q5.State the scale factor of enlargement for the transformation from B to A

5/8

Q6.A is transformed to B. Which statement is correct?

6/8

Q7.A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 5?

7/8

Q8.A shape has a perimeter of 14 cm. What will the perimeter be after an enlargement by scale factor 0.5?

8/8

Video

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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.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Enlargements and Area Quiz

Time to test what you know but completing the questions below!

Q1.Select all the words that would correctly fill the gap: When we _______ a shape we can affect the area.

Select one (1) boxes

1/6

Q2.Select the option that best fills the gap in order: The example below shows two different enlargements of the triangle on the left. If we enlarge by a ___________ of 2, the area becomes ____ times greater.

2/6

Q3.I enlarge this small rectangle with scale factor 3. How many of the small rectangles would be needed to make the enlarged rectangle?

3/6

Q4.This shape is enlarged. What is the area of the enlarged shape if the scale factor is 5?

4/6

Q5.This shape is enlarged. What is the area of the enlarged shape is the scale factor is 1?

5/6

Q6.This shape is enlarged. What is the area of the enlarged shape is the scale factor is 4?

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Enlargements and Area Quiz

Time to test what you know but completing the questions below!

Q1.Select all the words that would correctly fill the gap: When we _______ a shape we can affect the area.

Select one (1) boxes

1/6

Q2.Select the option that best fills the gap in order: The example below shows two different enlargements of the triangle on the left. If we enlarge by a ___________ of 2, the area becomes ____ times greater.

2/6

Q3.I enlarge this small rectangle with scale factor 3. How many of the small rectangles would be needed to make the enlarged rectangle?

3/6

Q4.This shape is enlarged. What is the area of the enlarged shape if the scale factor is 5?

4/6

Q5.This shape is enlarged. What is the area of the enlarged shape is the scale factor is 1?

5/6

Q6.This shape is enlarged. What is the area of the enlarged shape is the scale factor is 4?

6/6

Lesson summary: Enlargements and Area

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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

This was the final lesson in the unit Transforming 2-D figures.

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