4MA1/2H Jun 2021, Question 7: Choosing the Right Trigonometric Ratio
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2H (Higher) · Calculator · 3 marks
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The question, in short
Use the right-angled triangle with a 6.5 cm side opposite a 42° angle to calculate the hypotenuse 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
- 16.5 / sin(42) = x
- 2x = 6.5 / sin(42)
- 3x = 9.7
Answer9.7
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