0580/12 May/Jun 2023, Question 21: Similar Triangles
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Use the similarity of triangles ABC and PQR, with AB = 15 cm, BC = 9 cm and PQ = 18 cm, to calculate the length QR.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1QR/9 = 18/15
- 2QR = 9 × 18 ÷ 15
- 3QR = 10.8 cm
Answer10.8
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