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Enneadecagon
polygon with 19 sides / From Wikipedia, the free encyclopedia
An enneadecagon or 19-gon is a shape with 19 sides and 19 corners.[1] It is also known as an enneakaidecagon or a nonadecagon.[2]
Quick Facts Regular enneadecagon, Type ...
Regular enneadecagon | |
---|---|
![]() A regular enneadecagon | |
Type | Regular polygon |
Edges and vertices | 19 |
Schläfli symbol | {19} |
Coxeter diagram | ![]() ![]() ![]() |
Symmetry group | Dihedral (D19), order 2×19 |
Internal angle (degrees) | ≈161.052° |
Dual polygon | Self |
Properties | Convex, cyclic, equilateral, isogonal, isotoxal |
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