Triakis tetrahedron

Triakis tetrahedron
TypeCatalan solid,
Kleetope,
Non-ideal
Faces12
Edges18
Vertices8
Symmetry grouptetrahedral symmetry
Dihedral angle (degrees)129.52°
Dual polyhedrontruncated tetrahedron
Propertiesconvex,
face-transitive,
Rupert property
Net

In geometry, a triakis tetrahedron (or tristetrahedron, or kistetrahedron) is a Catalan solid, constructed by attaching four triangular pyramids to a tetrahedron.

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