Use some thinking to answer the following question. The edge of a cube is 5a cm. Find its surface?\nOptions:\n(A) 150a2 cm2\n(B) 170a2 cm2\n(C) 125a2 cm2\n(D) 175a2 cm2\n(E) 120a2 cm2
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6a2 = 6 * 5a * 5a = 150a2 So the final answer is (A).
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