The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 6 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 3x6   â‡’ R2 = (3x6/2)   â‡’ 9   â‡’ R = 3 cm.   3 cmnswer 3 cm
<result>A</result>
The surface area of a sphere is same as the curved surface area of a right circular cylinder whose height and diameter are 6 cm each. The radius of the sphere is