# SPM Additional Mathematics 2019, Paper 2 (Question 3)

Question 3:
Diagram 1 shows a sector POA with centre O.

It is given that the length of arc PB is 2.56 cm. [Use π = 3.142]
Calculate
(a) ∠ POB in radians, [2 marks]
(b) the area, in cm2, of the shaded region. [4 marks]

Solution:
(a)

(b)