What is a Regular Polygon?

Curated and Reviewed by Lesson Planet

What makes a polygon a regular polygon? Does this mean there are irregular polygons? For a polygon to be classified as a regular polygon, all the sides must be congruent and all the angles must be congruent. Those are the two rules that make a polygon regular.

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Concepts

congruent angles, congruence, congruent figures, equilateral triangles, polygons, 2-d shapes, 2-d, squares, quadrilaterals