The edge of a cube is 2a cm. Find its surface?\nOptions:\n(A) 24a8\n(B) 24a4\n(C) 24a1\n(D) 24a2\n(E) 24a7
Let's be accurate as possible and think first.
(D)
6a2 = 6 * 2a * 2a = 24a2.

Therefore, the answer is (D)