Question

what is the area of an equilateral triangle with side 2v3 cm ?

Answer 1

Area of an equilateral triangle =√3/4*(side)^2
= √3/4 * (2√3)^2
= √3/4 * 12
= 3*√3
= 3√3 sq.units.

Answer 2

Area of an equilateral triangle = √3/4*a²

= √3/4*(2√3)²

= √3/4*12

= √3*3

Therefore area= 3√3 cm²