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Icosagon
Polygon with 20 edges / From Wikipedia, the free encyclopedia
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In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon's interior angles is 3240 degrees.
Quick Facts Regular icosagon, Type ...
Regular icosagon | |
---|---|
![]() A regular icosagon | |
Type | Regular polygon |
Edges and vertices | 20 |
Schläfli symbol | {20}, t{10}, tt{5} |
Coxeter–Dynkin diagrams | ![]() ![]() ![]() ![]() ![]() ![]() |
Symmetry group | Dihedral (D20), order 2×20 |
Internal angle (degrees) | 162° |
Properties | Convex, cyclic, equilateral, isogonal, isotoxal |
Dual polygon | Self |
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