What is the perimeter of a quadrangle with all sides 5 cm?

The perimeter of the figure specified in the condition is the sum of all its four identical sides. Find the perimeter if one side is five centimeters:

P = 5 + 5 + 5 + 5 = 20 centimeters.

Or, given that this figure has 4 sides, you can subtract the perimeter in the following way:

P = 5 * 4 = 20 cm.

If ten cm, then:

P = 10 * 4 = 40 cm.

Or:

P = 10 + 10 + 10 + 10 = 40 cm.

If 20 cm – we act in the same way:

P = 20 * 4 = 80 cm.

And, finally, if the side is 25 cm:

P = 25 * 4 = 100 cm.