Question: The edge of a cube is 5a cm. Find its surface?
Options:
(A) 150a2 cm2
(B) 170a2 cm2
(C) 125a2 cm2
(D) 175a2 cm2
(E) 120a2 cm2 Random thoughts:
6a2 = 6 * 5a * 5a = 150a2 The final answer: (A).