In each case, the regular polygon, with equal angles and equal sides, is the winner. But for polygons that have an even number of sides and more than four sides, the results are peculiar.

A polygon is a closed 2D shape with at least three sides. A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a polygon where this is not the case.

A regular polygon has sides that are equal in length and equal angles. These shapes are all regular polygons. A regular triangle is called an equilateral triangle.