Tetradecagon

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Tetradecagon
Regular tetradecagon.svg
Rank2
TypeRegular
SpaceSpherical
Bowers style acronymTed
Info
Coxeter diagramx14o
Schläfli symbol{14}
SymmetryI2(14), order 28
ArmyTed
Elements
Vertex figureDyad, length 2cos(π/14)
Edges14
Vertices14
Measures (edge length 1)
Circumradius1/(2sin(π/14)) ≈ 2.24698
Inradius1/(2tan(π/14)) ≈ 2.19064
Area7/(2tan(π/14)) ≈ 15.33450
Angle6π/7 ≈ 154.28571°
Central density1
Euler characteristic0
Related polytopes
DualTetradecagon
ConjugatesTetradecagram, great tetradecagram
Properties
ConvexYes
OrientableYes
NatureTame

The tetradecagon, or ted, is a polygon with 14 sides. A regular tetradecagon has equal sides and equal angles.

It has two non-compound stellations, these being the tetradecagram and the great tetradecagram.

Vertex coordinates[edit | edit source]

Coordinates for a regular tetradecagon of edge length 2sin(π/14), centered at the origin, are:

  • (±1, 0),
  • (±cos(π/7), ±sin(π/7)),
  • (±cos(2π/7), ±sin(2π/7)),
  • (±cos(3π/7), ±sin(3π/7)).

Stellations[edit | edit source]

External links[edit | edit source]