Question

if area of a equilateral triangle is 36 root 3 cm square find its perimeter

Answer 1

Area of a Equilateral triangle = √3a²/4

√3a²/4 = 36√3

a²/4 = 36

a² = 144

a = 12 cm

Perimeter of a Equilateral triangle = 3 × a = 12 × 3 = 36 cm