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{{ printedBook.courseTrack.name }} {{ printedBook.name }} A regular polygon is a polygon whose sides and angles are all congruent.

Regular polygons with three sides are generally referred to as either equilateral or equiangular triangles. Regular polygons with four sides are called squares. Regular polygons with more than four sides don't typically have any special names.

There is no upper limit on the number of sides of a regular polygon.