**??? - 2015 JUNE Q3 ANSWERS**

3.

The diagram shows a sector

(i) Find the area of the shaded region

(ii) Find the perimeter of the shaded region

*AOB*of a circle with centre*O*and radius 8 cm. The angle*AOB*is 1.2 radians. The points*C*and*D*lie on*OA*and*OB*respectively such that*OC*= 5.2 cm and*OD*= 2.6 cm.*CD*is a straight line.

(i) Find the area of the shaded region

*ACDB*. [4](ii) Find the perimeter of the shaded region

*ACDB*. [5]