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Geometry & MeasuresIntroduction

Zooming In and Out

Part of Transformations: Enlargements · GCSE GCSE Mathematics revision

This introduction covers Zooming In and Out within Transformations: Enlargements for GCSE Mathematics. Revise Transformations: Enlargements in Geometry & Measures for GCSE Mathematics with 15 exam-style questions and 5 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 1 of 7 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 1 of 7

Practice

15 questions

Recall

5 flashcards

Zooming In and Out

Enlargement is the ONLY transformation that changes size. Like zooming on a photo - everything scales from a centre point. Scale factor 2 means twice as big. Scale factor 0.5 means half size. Negative scale factors flip the shape to the opposite side!
Enlargements diagram

Keep building this topic

Read this section alongside the surrounding pages in Transformations: Enlargements. That gives you the full topic sequence instead of a single isolated revision point.

Scale Factor EffectsArea and Volume Scale FactorsMethod: Enlarging from a Centre

Practice Questions for Transformations: Enlargements

Which of the following statements correctly describes an enlargement?

  • A. A transformation that changes the shape of an object but keeps its size the same
  • B. A transformation that changes the size of a shape using a scale factor and a centre of enlargement
  • C. A transformation that always makes a shape bigger
  • D. A transformation that rotates a shape around a fixed point
1 markfoundation

Triangle P has vertices at (2, 1), (6, 1) and (2, 5). Triangle Q has vertices at (4, 2), (12, 2) and (4, 10). Describe fully the single transformation that maps triangle P onto triangle Q.

3 marksstandard

Quick Recall Flashcards

Scale Factor > 1
Shape gets BIGGER. SF = 2 means all lengths doubled. Only transformation that changes size!
Scale Factor < 1
Shape gets SMALLER. SF = 0.5 means all lengths halved. Still called "enlargement" even though it shrinks!

15 questions on Transformations: Enlargements — practise free

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Scale Factor Effects