Question

If area of an Equilateral triangle is12root3. Find the perimeter

Answer 1

∆ = 12√3
√3/4 a² = 12√3
a² = 12√3 × 4/√3
a² = 48
a = √48
a = √16×3
a = 4√3

perimeter = 3a = 3(4√3)
= 12√3 cm