The edge of a cube is 5a cm. Find its surface?\nOptions:\n(A) 24a8\n(B) 150a2\n(C) 24a1\n(D) 24a2\n(E) 24a7 Stream of consciousness first, then make a decision:
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6a2 = 6 * 5a * 5a = 150a2
Thus, the answer is (B).
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