Use some thinking to answer the following question. The edge of a cube is 3a cm. Find its surface?
Options:
(A) 64a2 cm2
(B) 54a2 cm2
(C) 84a2 cm2
(D) 24a2 cm2
(E) 34a2 cm2
6a2 = 6 * 3a * 3a = 54a2 So the final answer is (B).