0580/12 Feb/Mar 2023, Question 24: Choosing the Right Trigonometric Ratio
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Using a right-angled triangle with sides 74 cm and 46 cm, show that angle y equals 31.9° to 1 decimal place.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1tan y = opposite/adjacent = 46/74
- 2y = tan⁻¹(46/74) = 31.86…°
- 3= 31.9° to 1 decimal place
Answer31.86 to 31.87
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