The area of a square is 25 cm square, its perimeter was calculated.

Remember that all four sides of a square are the same. And its area is one side multiplied by the other side.
Next, let’s remember the multiplication table. we need to pick up two numbers, multiplying them by each other, we get the number 25 as a result.
5 * 5 = 25.
This means that the side of the square is 5 centimeters.
Now let’s calculate the perimeter of the square by adding all four sides together:
P = 5 cm + 5 cm + 5 cm + 5 cm = 20 cm – the perimeter of the square.
Or:
P = 5 cm * 4 sides = 20 cm.
Bottom line: the perimeter of the square is 20 cm.