Tetrahemihexahedron

The Uniform Polyhedron $U_4$ whose Dual Polyhedron is the Tetrahemihexacron. It has Schläfli Symbol ${\rm r}^\prime\{{3\atop 3}\}$ and Wythoff Symbol ${\textstyle{3\over 2}}\,3\,\vert\,2$. Its faces are $4\{3\}+3\{4\}$. It is a faceted form of the Octahedron. Its Circumradius is

$$R={\textstyle{1\over 2}}\sqrt{2}\,.$$

References

Wenninger, M. J. Polyhedron Models. Cambridge, England: Cambridge University Press, pp. 101-102, 1971.