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0580/12 May/Jun 2024, Question 18: Choosing the Right Trigonometric Ratio

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks

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The question, in short

From a right-angled triangle with hypotenuse 14 cm and base 8.5 cm, calculate the angle x between them.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Solution · 2 marks

  1. 1cos x = 8.5/14
  2. 2x = cos⁻¹(8.5/14) = 52.61…° ≈ 52.6

Answer52.6 or 52.61 to 52.62

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