What is a polygon that is sometimes regular

A polygon that is sometimes regular is a pentagon. A regular polygon is a polygon that has all sides equal and all interior angles are equal. Its sides and vertices are evenly spread around a central point, and a regular polygon is called convex where all the vertices point “outwards”.

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}