Question

How do I find the perimeter of a square from the area of the square?

Answer 1

It's quite easy to find the perimeter of a square if you know it's area. It goes as follows :-
Suppose the side of the square you have is s and let the area be a
We know that the formula for the area of a square is$sid{e}^2$
$area=sid{e}^2$
$\therefore a=s^2$
$\therefore s=\sqrt{a}$
So we will obtain the side of the square.
Now we know that the formula for the perimeter of a square is $4\times side$
$\therefore perimeter=4\times s$
$\therefore Perimeter=4\times \sqrt{a}$