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How many angles can you calculate in the time?

Lesson 39 - Similarity

1. 80 ÷ 5 2. 72 + 32 3. ∛10004. What is the largest square number under 100?5. Expand −3 ( 2𝑥 + 5 ) 6. Split £20 in the ratio 7 : 37. Estimate the size of the pencil. 8. Round 3.528 to 1 decimal place.

Challenge

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Quizizz

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These rectangles are similar. Find the area of each. What is the scale factor between them?
4cm
9cm
3cm

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6cm
6cm
3cm
3cm
These cubes are similar. Find the volume of each. What is the scale factor between them?
6cm
3cm

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Similarity - worksheet

Similar Area 1 [MH43.07]

04

Similar Polygons: Missing Sides [MF43.04]

03

Similar Polygons: Finding the Scale Factor [MF43.02]

02

Introduction to Similarity [MF43.01]

01

Century Tasks

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https://drive.google.com/file/d/1cw-5LkBKjywGEAnNUU7bDLDsUHd4x1ia/view?usp=sharing

Similarity

Past paper questions

Past paper questions

https://drive.google.com/file/d/1cw-5LkBKjywGEAnNUU7bDLDsUHd4x1ia/view?usp=sharing

https://drive.google.com/file/d/1cw-5LkBKjywGEAnNUU7bDLDsUHd4x1ia/view?usp=sharing

https://drive.google.com/file/d/1cw-5LkBKjywGEAnNUU7bDLDsUHd4x1ia/view?usp=sharing

https://drive.google.com/file/d/1cw-5LkBKjywGEAnNUU7bDLDsUHd4x1ia/view?usp=sharing

Calculate the perimeter of the sector