0580/12 Feb/Mar 2021, Question 17: Similar Triangles
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Use the similar triangles ABC and PQR, with AC = 1.61 cm, CB = 2.8 cm, RQ = 3.2 cm, to find x, the length PR.
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Solution · 2 marks
- 1Corresponding sides: x/1.61 = 3.2/2.8
- 2x = 1.61 × 3.2 ÷ 2.8
- 3x = 1.84
Answer1.84
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