Answer:
13 cm
Explanation:
A square's perimeter is equal to the addition of all it's 4 sides.
It's important to consider one of the main properties of squares here—that all its sides are equal.
So if we assign the value of one side of the square the variable x, we can attribute that same value x to all the sides.
Therefore, the perimeter should be equal to 4x, with x being the length of the square's side.
We are given the perimeter, 52 cm, so now we can just set 4x = 52 and solve.
4x = 52
x = 52/4 = 13
the length is 13 cm
Hope this helps :)