9. Diagram shows a quadrant PQRS and a sector of a circle with centre at R.calculate (a) the perimeter of the shaded region; (b) the area of the shaded region.

Use:
[tex]\pi = \frac{22}{7} [/tex]

9 Diagram shows a quadrant PQRS and a sector of a circle with centre at Rcalculate a the perimeter of the shaded region b the area of the shaded regionUsetexpi class=