Question

area of an equilateral triangle is
$81 \sqrt{3} cm {}^{2}$
find it's perimeter
​

Answer 1

Answer:

Area = 81√3

√3/4 a^2= 81√3

a^2= 81√3×4/√3

a = 9×2 = 18

Answer 2

Answer:

hey mate this is ur answer .........