Inactive Tutor answered 05/18/16
Tutor
New to Wyzant
A regular polygon has all its sides of equal length.
If not regular, then not all sides are of equal lengths. As example of non-regular polygons I suggest Home Plate in baseball, and an isosceles triangle with two sides of length 4" and the third of length 2". All trapezoids are non-regular polygons, too. There are infinitely many examples.