4MA1/1FR Jun 2025, Question 24: Choosing the Right Trigonometric Ratio
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 3 marks
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The question, in short
In right-angled triangle PQR with right angle at Q, PQ = 6.5 cm and angle PRQ = 24°, work out the length of QR to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1PQ is opposite 24°, QR is adjacent
- 2tan 24° = 6.5/QR
- 3QR = 6.5 ÷ tan 24°
- 4= 14.599…
- 5= 14.6 cm (3 s.f.)
Answer14.6
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