The radius of a cylindrical vessel is 7cm and height is 3cm. Find the whole surface of the cylinder?
Choose the correct choice: A) 520 sq cm B) 840 sq cm C) 440 sq cm D) 120 sq cm E) 5 sq cm

Rationale: explanation : r = 7 h = 3 2 π r ( h + r ) = 2 * 22 / 7 * 7 ( 10 ) = 440 sq cm answer : c
Answer: C