16 R cm NOT TO 6 cm SCALE 18 cm The diagram shows a sphere of radius 6 cm and a cylinder of height 18 cm and radius R cm. The volume of the sphere is equal to the volume of the cylinder. Calculate the curved surface area of the cylinder. Give your answer in terms of r. 4 [The volume, V, of a sphere with radius r is V = rr3] 3 .......................................... cm2 [4] M SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD