Question

if the area of an equilateral triangle is 256 unrule 3 find its perimeter..

Answer 1

area =256root3
area =root3/4 a^2
root3/4 a^2 =256root3
1/4 a^2 =256
a^2=256×4
a=root(256×4)
a=16×2
a=32
as it is equilateral triangle all sides are equal
there are 3sides
perimeter=3a
3(32)
perimeter=96cm is answer