Question

the area of an equilateral triangle is 144 under root 3 cm square find its perimeter

Answer 1

here is ur answer..
hope it helps u .....

Answer 2

Given Area of Equilateral triangle = 144 root 3 cm^2.

                   root 3/4 a^2 = 144 root 3

                   a^2 = 144 * 4

                   a^2 = 576
 
                    a = 24.

Perimeter = 3a

                 = 3 * 24

                 = 72.