| Exam Board | AQA |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2009 |
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| Session | June |
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| Topic | Radians, Arc Length and Sector Area |
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6 The diagram shows a sector \(O A B\) of a circle with centre \(O\) and radius \(r \mathrm {~cm}\).
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The angle \(A O B\) is 1.2 radians. The area of the sector is \(33.75 \mathrm {~cm} ^ { 2 }\).
Find the perimeter of the sector.