Paper 2 · Geometry ⏱ Tested in 3 exam questions since 2022 Lesson 19 of 19

Geometry 19 – Enlargements

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You’ll learn

  • Find the scale factor of an enlargement: k = image length ÷ object length
  • Scale areas by k² and volumes by k³
  • Locate the centre of enlargement by extending lines through corresponding points
  • Recognise that the image is similar to the object — and that k < 1 shrinks it

Most recent exam questions

  • 2025 P2 Q5(b)(i)
  • 2025 P2 Q5(b)(ii)
  • 2025 P2 Q8(c) — deferred
  • 2022 P2 Q9(a)(iii) — deferred

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