= [2] Answer (c) x The diagram shows the sector of a circle, centre It is given that the radius of the circle is 16 O. 12 cm and = 120°. ∠AOB Find the perimeter of the sector (a) OAB, cm [2] Answer (a) (b) the area of the sector AOB. cm2 [2] Answer (b)
Answer (c) x = [2] 16 The diagram shows the sector of a circle, centre O. It is given that the radius of the circle is 12 cm and ∠AOB = 120°. Find (a) the perimeter of the sector OAB, Answer (a) cm [2] (b) the area of the sector AOB. Answer (b) cm2 [2]
4NA_EM_P1_Prelim_2012.docx