Question

The area of an equilateral triangle with side 2√3 cm is

(A) 5.196 cm²

(B) 0.866 cm²

(C) 3.496 cm²

(D) 1.732 cm²

Answer 1

(A) 5.196 cm²

Explanation:

Area of an equilateral triangle of side a = √3/4 a²

According to the question,

a = 2√3

Area of triangle = (√3/4) a²

= (√3/4) (2√3)²

= (√3/4)(12)

= 3√3

= 5.196

Hence, Options A is the correct answer.