What is the area of an equilateral triangle that has a perimeter of 36 centimeters? Round to the nearest square centimeter.

An equilateral triangle has three equal sides, so each side is 36 ÷ 3 = 12 centimeters. Its area is (√3 ÷ 4) × 12² = 36√3 ≈ 62.4 square centimeters. Rounded to the nearest square centimeter, the area is 62 square centimeters, choice C.

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