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An equilateral triangle has perimeter 36 cm. Taking √3 = 1.73, find its area in $cm^{2}$ .

Competition practiceAreas & Volumes

A31.14
B72.00
C62.28
D51.90

Step-by-Step Solution

Side = 36/3 = 12 cm. Area = (√3/4) ×

1 2^{2} = (1.73/4) \times 144 = 1.73 \times 36 = 62.28 cm^{2}

.

Answer: C) 62.28

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