If the area of an equilateral triangle is 36√3 cm², find its perimeter.

Given: Area of an equilateral triangle = 36√3 cm²

We know that,

Area of equilateral triangle =

⇒ side² = 36 × 4

⇒ side = 12 cm

Now,

Perimeter of equilateral triangle = 3 × side

= 3 × 12 cm

= 36 cm