Compound of two heptagrams
(Redirected from Great stellated tetradecagon)
Compound of two heptagrams | |
---|---|
Rank | 2 |
Type | Regular |
Notation | |
Bowers style acronym | Gosted |
Schläfli symbol | {14/4} |
Elements | |
Components | 2 heptagrams |
Edges | 14 |
Vertices | 14 |
Vertex figure | Dyad, length 2cos(2π/7) |
Measures (edge length 1) | |
Circumradius | |
Inradius | |
Area | |
Angle | |
Central density | 4 |
Number of external pieces | 28 |
Level of complexity | 2 |
Related polytopes | |
Army | Ted, edge length |
Dual | Compound of two heptagrams |
Conjugates | Compound of two heptagons, compound of two great heptagrams |
Convex core | Tetradecagon |
Abstract & topological properties | |
Flag count | 28 |
Euler characteristic | 2 |
Orientable | Yes |
Properties | |
Symmetry | I2(14), order 28 |
Convex | No |
Nature | Tame |
The great stellated tetradecagon or gosted is a polygon compound composed of two heptagrams. As such it has 14 edges and 14 vertices.
It is the third stellation of the tetradecagon.
Its quotient prismatic equivalent is the heptagrammic antiprism, which is three-dimensional.
Vertex coordinates[edit | edit source]
Coordinates for a compound of two heptagrams of edge length 2sin(2π/7), centered at the origin, are:
External links[edit | edit source]
- Bowers, Jonathan. "Regular Polygons and Other Two Dimensional Shapes".