Regular polygon

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Regular hendecagon
Regular hendecagon.svg
A regular hendecagon
Type Regular polygon
Edges and vertices 11
Schläfli symbol {11}
Coxeter diagram CDel node 1.pngCDel 11.pngCDel node.png
Symmetry group Dihedral (D11), order 2×11
Internal angle (degrees) ≈147.273°
Dual polygon Self
Properties Convex, cyclic, equilateral, isogonal, isotoxal

A regular polygon is a polygon which is both equilateral (which means all its sides have the same length) and equiangular (which means that all its angles are the same).

Examples[change | change source]

The simplest examples of regular polygons are: