Triangular symmetry

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Triangular symmetry
Equilateral triangle with medians.svg
Rank2
SpaceSpherical
Order6
Info
Coxeter diagramCDel node.pngCDel 3.pngCDel node.png
Elements
Axes3 × A1×I
Related polytopes
OmnitruncateDitrigon

Triangular symmetry, also known as triggic symmetry and notated as A2, is a 2D spherical Coxeter group. It is the symmetry group of the equilateral triangle, and has 3 rotation and 3 reflection elements.

Subgroups[edit | edit source]

Convex polytopes with A2 symmetry[edit | edit source]