4MA1/2F Jun 2024, Question 21: Choosing the Right Trigonometric Ratio
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 3 marks
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The question, in short
Using the right-angled triangle ABC with angle BAC = 34° and AC = 6.5 cm, work out the length BC = x, giving the answer to one decimal place.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1sin34 = x / 6.5
- 2x = 6.5 × sin34
- 3x = 6.5 × 0.5592
- 4x = 3.6
Answer3.6
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