The side of an equilateral triangle whose area is 4√3 cm2 is:
Correct Answer: Option D
We know that,
Area of an equilateral triangle is given by the formula
\(area = \;\frac{{\sqrt 3 }}{4} \times {\left( {side} \right)^2}\)
\(\Rightarrow 4\sqrt 3 = \frac{{\sqrt 3 }}{4} \times {\left( {side} \right)^2}\)
⇒ side2 = 4 cm × 4 cm
⇒ side = 4 cm
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