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Polygon with 19 edges / From Wikipedia, the free encyclopedia
In geometry, an enneadecagon, nonadecagon or 19-gon is a nineteen-sided polygon.
Quick Facts Regular enneadecagon, Type ...
Regular enneadecagon | |
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Type | Regular polygon |
Edges and vertices | 19 |
Schläfli symbol | {19} |
Coxeter–Dynkin diagrams | |
Symmetry group | Dihedral (D19), order 2×19 |
Internal angle (degrees) | ≈161.052° |
Properties | Convex, cyclic, equilateral, isogonal, isotoxal |
Dual polygon | Self |
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