# Find volumes of similar shapes given corresponding lengths

For similar shapes, use the linear scale factor to calculate the volume scale factor and find the volume of similar shapes.

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!

## Question 4

Q1.Shape A and shape B are similar. Calculate the area of shape B.

1/4

Q2.Two similar triangles have heights of 2 cm and 10 cm. The area of the smaller triangle is 5 cm². Calculate the area of the larger triangle.

2/4

Q3.Complete the missing word:

3/4

Q4.Triangle A and triangle B are similar. Calculate the base length of triangle B.

4/4

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!

## Question 4

Q1.Shape A and shape B are similar. Calculate the area of shape B.

1/4

Q2.Two similar triangles have heights of 2 cm and 10 cm. The area of the smaller triangle is 5 cm². Calculate the area of the larger triangle.

2/4

Q3.Complete the missing word:

3/4

Q4.Triangle A and triangle B are similar. Calculate the base length of triangle B.

4/4

# 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.

Quiz:

# Find volumes of similar shapes given corresponding lengths

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

## Question 3

Q1.Solid A and B are similar. Work out the linear scale factor.

1/3

Q2.Solid A and B are similar. Solid A has a volume of 30 cm³. Work out the volume of solid B.

2/3

Q3.There are two similar solids X and Y. Amir says that if Y has a side length double that of the corresponding side on solid X then the volume of the solid Y will be 8 times larger than X. Is Amir correct?

3/3

Quiz:

# Find volumes of similar shapes given corresponding lengths

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

## Question 3

Q1.Solid A and B are similar. Work out the linear scale factor.

1/3

Q2.Solid A and B are similar. Solid A has a volume of 30 cm³. Work out the volume of solid B.

2/3

Q3.There are two similar solids X and Y. Amir says that if Y has a side length double that of the corresponding side on solid X then the volume of the solid Y will be 8 times larger than X. Is Amir correct?

3/3

# Lesson summary: Find volumes of similar shapes given corresponding lengths

## Time to move!

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For 5 mins...

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