If the area of an equilateral triangle is 36√3 cm2, then the perimeter of the triangle is :
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Correct answer: B
Explanation
The correct answer is option 2 i.e 36 cm
Area of an equilateral trangle = 36√3 cm2
(√3 a2)/4 = 36√3 cm2
a = 12 cm
Perimeter of the triangle = 3 × a = 3 × 12 = 36 cm