Question

Perimeter of a regular polygon = length of one side $\times$ ___________.

Answer 1

Define regular polygon.

A regular polygon is a plane figure defined by a finite number of equal straight-line segments joined together to form a closed polygonal chain.
The perimeter of a shape is the distance around its edge. It is computed by multiplying the side lengths of various forms.

The perimeter of a square is a product of the length of a side and the number of sides.

Hence, perimeter of a regular polygon = length of one side $\times$Number of sides