Snub Tetrahedron

twist

0

rotate

0

This Demonstration shows a solid with symmetry type T, that is, tetrahedral symmetry without mirror planes.

These solids are called snub tetrahedra; all but the version with no twist have 20 faces.

[1] P. R. Cromwell, Polyhedra, Cambridge: Cambridge University Press, 1997 p. 312.

Izidor Hafner