Great hexacronic icositetrahedron

Template:Short description Template:Uniform polyhedra db In geometry, the great hexacronic icositetrahedron is the dual of the great cubicuboctahedron. Its faces are kites. Part of each kite lies inside the solid, hence is invisible in solid models.

Proportions

The kites have two angles of $\arccos (\frac{1}{4}-\frac{1}{2}\sqrt{2})\approx 117.20057038016^{\circ }$, one of $\arccos (-\frac{1}{4}+\frac{1}{8}\sqrt{2})\approx 94.19914442976^{\circ }$ and one of $\arccos (\frac{1}{2}+\frac{1}{4}\sqrt{2})\approx 31.39971480992^{\circ }$. The dihedral angle equals $\arccos (\frac{-7+4\sqrt{2}}{17})\approx 94.53158079820^{\circ }$. The ratio between the lengths of the long and short edges is $2+\frac{1}{2}\sqrt{2}\approx 2.70710678118655$.

References

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External links

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