4MA1/2HR Jun 2022, Question 13: Arc Length
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
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The question, in short
Using a sector AOB with centre O, angle 67° and radius 5.2 cm, calculate the sector's perimeter, giving the answer to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 12 × π × 5.2 = 32.67...
- 267/360 × 2 × π × 5.2 = 6.08...
- 36.08... + 2 × 5.2 = 16.48...
- 416.5
Answer16.5
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