digon

Also known as 2-gon, demisquare, 2-demicube

In geometry, a bigon, digon, or a '''2-gon''', is a polygon with two sides (edges) and two vertices. Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space. It may also be viewed as a representation of a graph with two vertices, see "Generalized polygon".

Key facts

Polygon.type: Regular polygon
Polygon.edges: 2
Polygon.schläfli: {2}
Polygon.symmetry: D2, [2], (*2•)
Polygon.name: Regular digon
Polygon.image: Digon.svg
Polygon.caption: On a circle, a digon is a tessellation with two antipodal points, and two 180° arc edges.
Polygon.angle: 0° (convex)
Polygon.dual: Self-dual

via Wikipedia infobox

Wikidata facts

Image: Digon.svg

Show 2 more facts

Commons category: Digons
Schläfli symbol: {2}

Sources (1)

wikidata.org

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~4 min read

Article

10 sections

Contents

In different fields
In Euclidean geometry
In elementary polyhedra
As a spherical lune
In topological structures
See also
References
Citations
Bibliography
External links

{{Infobox polygon| type = Regular polygon | euler = | edges = 2 | schläfli = {2} | wythoff = | coxeter = | symmetry = D2, [2], (*2•) | area = | name = Regular digon | image = Digon.svg | caption = On a circle, a digon is a tessellation with two antipodal points, and two 180° arc edges. | angle = 0° (convex) | dual = Self-dual | properties = }}

In geometry, a bigon, digon, or a '''2-gon', is a polygon with two sides (edges) and two vertices. Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space. It may also be viewed as a representation of a graph with two vertices, see "Generalized polygon".