| Exam Board | OCR MEI |
|---|
| Module | C2 (Core Mathematics 2) |
|---|
| Year | 2007 |
|---|
| Session | June |
|---|
| Topic | Radians, Arc Length and Sector Area |
|---|
5 A sector of a circle of radius 5 cm has area \(9 \mathrm {~cm} ^ { 2 }\).
Find, in radians, the angle of the sector.
Find also the perimeter of the sector.