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- Scale Factors and Similarity

Still Confused?

Try reviewing these fundamentals first

Still Confused?

Try reviewing these fundamentals first

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Get Started NowStart now and get better maths marks!

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Get Started Now- Intro Lesson: a4:24
- Lesson: 1a2:06
- Lesson: 1b1:42
- Lesson: 22:12
- Lesson: 3a2:06
- Lesson: 3b0:52
- Lesson: 3c0:44

When you are asked to make an object bigger or smaller, you will ask, "by how much?" In this case, scale factor can help answer the question. In this lesson, we will practice how to enlarge and reduce objects according to the scale factors given to us.

Related Concepts: Congruence and congruent triangles, Triangles congruent by SSS proofs, Triangles congruent by SAS and HL proofs, Triangles congruent by ASA and AAS proofs

- Introductiona)What is a scale factor?
- 1.Redraw the letters below using a scale factor of 2.a)

b)

- 2.Redraw the shape using a scale factor of $\frac{1}{4}$ .

- 3.The ratio of the length to the width of a window is 3:2. If the window is 8 m wide, what are the dimensions of the window that has a scale factor of:

a)0.5?b)2?c)3?

23.

Scale Factors and Similarity

23.1

Enlargements and reductions with scale factors

23.2

Scale diagrams

23.3

Similar triangles

23.4

Similar polygons

We have plenty of practice questions in Transition Year Maths for you to master.

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