Scale Factor Effects
Part of Transformations: Enlargements · GCSE GCSE Mathematics revision
This key facts covers Scale Factor Effects 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 2 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 7
Practice
15 questions
Recall
5 flashcards
Scale Factor Effects
| Scale Factor | Effect on Shape | Example |
|---|---|---|
| SF > 1 | Shape gets BIGGER | SF = 3: all lengths × 3 |
| SF = 1 | No change (same size) | SF = 1: shape unchanged |
| 0 < SF < 1 | Shape gets SMALLER | SF = 0.5: all lengths × 0.5 |
| SF < 0 | Enlarges AND inverts (opposite side) | SF = -2: twice as big, flipped |
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.
Practice Questions for Transformations: Enlargements
Which of the following statements correctly describes an enlargement?
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.
Quick Recall Flashcards
15 questions on Transformations: Enlargements — practise free
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