The perimeter of a regular pentagon is 100 cm. Find the length of each side of a regular pentagon.

A regular pentagon is a five-sided polygon with all sides having an equal length.
To find the length of each side of a regular pentagon, divide the perimeter by the number of sides.
Given, the perimeter of a regular pentagon = 100 cm
Number of sides = 5
The length of each side = Perimeter / Number of sides = 100 / 5 = 20 cm
Therefore, the length of each side of a regular pentagon is 20 cm.