# How do I find the perimeter of a square if I know its area?

##### 2 Answers

Take a square root, then multiply it by 4.

#### Explanation:

The defining characteristic of a **square** is that its length is equal to its width. Take a look below:

So, for this particular square, the area is

Well, the formula for perimeter is simply 2 times length + 2 times width. In the case of our square, this would simply be

Therefore, if given an area, all you'd do is take the square root (to get from

Hope that helped :)

#### Explanation:

To find the perimeter of square, you just need to know the length of one side, because in a square all the sides are the same length.

If you know the area, find the square root of it to find the side.

Now you multiply by

For example, if the area is