A cylinder is inserted in a sphere d/h = 2/3. Find the surface area of the cylinder ?	Answers.
A) 23.12
B) 24.12
C) 25.12
D) 26.12
E) 27.12

Rationale: take r = 1 , h = 3 = 2 * 3.14 * r * r + 2 * 3.14 * r * h = 2 * 3.14 * r ( r + h ) = 2 * 3.14 * 1 ( 1 + 3 ) = 2 * 3.14 ( 4 ) = 25.12 answer : c
Answer: C