| Exam Board | AQA |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2015 |
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| Session | June |
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| Marks | 4 |
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| Topic | Radians, Arc Length and Sector Area |
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1 The diagram shows a sector \(O A B\) of a circle with centre \(O\) and radius 5 cm .
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The angle \(A O B\) is \(\theta\) radians and the area of the sector is \(15 \mathrm {~cm} ^ { 2 }\).
Find the perimeter of the sector.
[0pt]
[4 marks]