0580/42 May/Jun 2026, Question 3: Constructing Triangles
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 2 marks
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The question, in short
Using ruler and compasses only, construct triangle ABC with AC = 10 cm and BC = 8.5 cm, starting from the given line AB.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1Set compasses to 10 cm, centre A, draw an arc
- 2Set compasses to 8.5 cm, centre B, draw an arc crossing the first
- 3Label the crossing point C
- 4Join AC and BC with a ruler, leaving the arcs
AnswerCorrect triangle with arcs (AC = 10 cm, BC = 8.5 cm, accuracy ± 2 mm)
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Also searched as: 0580/42/M/J/26 · 0580_s26_qp_42 · 0580 s26 42 · question 3.
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