0580/41 Oct/Nov 2025, Question 21: Area of a triangle (½ab sin C)
Cambridge IGCSE Mathematics 0580 · Paper 41 (Extended) · Calculator · 2 marks
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The question, in short
Triangle STU has ST = 8 cm, SU = 9 cm and angle TSU = 50°. Find its area.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Area = 1/2 × 8 × 9 × sin 50°
- 2= 27.57… ≈ 27.6 cm²
Answer27.6 or 27.57 to 27.58
Stuck on a step? Read the free lesson: Area of a Triangle Using Sine
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