If the area of an equilateral triangle is 36 square root 3cm2 find its perimeter.
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√3/4a² = 36√3
a² = 36√3×4/√3
a²= 144
a = 12
Side = 12cm
Perimeter = 3a = 3(12)= 36.
a² = 36√3×4/√3
a²= 144
a = 12
Side = 12cm
Perimeter = 3a = 3(12)= 36.
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