The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 16 cm each. The radius of the sphere is Choose the correct choice from the following answers:	A) 3 cm	B) 4 cm	C) 6 cm	D) 8 cm	E) None
Solution   4Î R2	= 2Î 8x16   â‡’ R2 = (8x16/2)   â‡’ 64   â‡’ R = 8 cm.   Answer 8 cm
<result>D</result>
The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 16 cm each. The radius of the sphere is