Triangular pyramidal symmetry

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Triangular pyramidal symmetry

Triangular pyramidal symmetry, also known as trippyric symmetry and notated as A2×I, is a 3D spherical symmetry group. It is the symmetry group of the triangular pyramid and occurs as a subgroup in all of tetrahedral, octahedral, and icosahedral symmetry.

Subgroups[edit | edit source]