In geometry, the great triakis octahedron is the dual of the stellated truncated hexahedron (U19). It has 24 intersecting isosceles triangle faces. Part of each triangle lies within the solid, hence is invisible in solid models.
Proportions The triangles have one angle of and two of . The dihedral angle equals .
References
External links Mathworld - Great Triakis Octahedron Mathworld - Small Triakis Octahedron Uniform polyhedra and duals