Question

Area of equilateral triangle is 9√3 cm sq find the perimeter of the triangle

Answer 1

Given area is 9Root3 the as we know area of equilateral triangle is root3/4×asquare here

(root3/4)a×a=9root3

(1/4)asquare =9

asquare =9×4

a=root36

a=6

then side we get =6

then perimeter =3×6

=18