Area of an equilateral triangle whose side is 2 cm is A) 2√3 cm2 B

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

Area of an equilateral triangle whose side is 2 cm is A) 2√3 cm2 B) √3 cm2 C) 4 cm2 D) 8 cm2

Answer»

Correct option is (B) √3 cm²

Side of equilateral triangle is a = 2 cm

\(\therefore\) Area of equilateral triangle \(=\frac{\sqrt3}4a^2\)

\(=\frac{\sqrt3}4\times2^2\) = \(\sqrt{3}\) \(cm^2\)

Correct option is B) √3 cm²