Question

The area of an equilateral triangle is numerically equal to its perimeter. Find its perimeter correct to 2 decimal places. (hint: area of an equilateral triangle is
$\frac{ \sqrt{3} }{4} \times {(side)}^{2}$
and its perimeter is 3×side.....

please help me....

Answer 1

here is ur ans..
hope it helps u :)

Answer 2

Now,

Perimeter of ∆ = 3a
= 3×6.92
= 20.76


OR we can say

Perimeter of ∆ = 3a
= 3×4√3
= 12√3