Area of an equilateral triangle whose side is 2 cm is
Area of an equilateral triangle whose side is 2 cm is
A) 2√3 cm2
B) √3 cm2
C) 4 cm2
D) 8 cm2
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Correct option is (B) √3 cm2
Side of equilateral triangle is a = 2 cm
\(\therefore\) Area of equilateral triangle \(=\frac{\sqrt3}4a^2\)
\(=\frac{\sqrt3}4\times2^2\) = \(\sqrt{3}\) \(cm^2\)
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