Regular dodecagon | |
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![]() A regular dodecagon | |
Type | Regular polygon |
Edges and vertices | 12 |
Schläfli symbol | {12}, t{6}, tt{3} |
Coxeter–Dynkin diagrams | ![]() ![]() ![]() ![]() ![]() ![]() |
Symmetry group | Dihedral (D12), order 2×12 |
Internal angle (degrees) | 150° |
Properties | Convex, cyclic, equilateral, isogonal, isotoxal |
Dual polygon | Self |
In geometry, a dodecagon, or 12-gon, is any twelve-sided polygon.