0580/11 May/Jun 2023, Question 22: The Tangent Ratio
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 2 marks
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The question, in short
Right-angled triangle with legs 7.5 cm and 12.8 cm; angle y is between the 12.8 cm side and the hypotenuse. Calculate y.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1tan y = opposite/adjacent = 7.5/12.8
- 2y = tan⁻¹(7.5 ÷ 12.8)
- 3= 30.36… ≈ 30.4
Answer30.4 or 30.36 to 30.37
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