Question: What is the are of an equilateral triangle of side 10 cm?\nOptions:\n(A) 66âˆš3 cm2\n(B) 25âˆš3 cm2\n(C) 64âˆš3 cm2\n(D) 64âˆš5 cm2\n(E) 14âˆš3 cm2 Let's think first. Some random reasoning:
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Area of an equilateral triangle = âˆš3/4 S2\nIf S = 10, Area of triangle = âˆš3/4 * 10 * 10 = 25âˆš3 cm2; The final answer: (B).
Assistant