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Obtuse Golden Rhombohedron


GoldenRhombohedra

An obtuse golden rhombohedron is the obtuse member of the two golden rhombohedra. Both are trigonal trapezohedra and rhombohedra whose faces are six congruent golden rhombi.

The obtuse golden rhombohedron is a zonohedron and one of the five golden isozonohedra. It is implemented in the Wolfram Language as PolyhedronData["ObtuseGoldenRhombohedron"].

ObtuseGoldenRhombohedronNet

A net of the obtuse golden rhombohedron is illustrated above.

The obtuse golden rhombohedra with edge length a has tip-to-tip height

 h=sqrt(3-6sqrt(sqrt(5)))a,
(1)

surface area

 S=(12)/5sqrt(5)a^2,
(2)

and volume

 V=1/5sqrt(10-2sqrt(5))a^3.
(3)

Together with the acute golden rhombohedron, this is a tile of the Ammann-Kramer-Neri tiling, a three-dimensional analogue of Penrose tiles (Dietl and Eschenburg 2017).


See also

Acute Golden Rhombohedron, Ammann-Kramer-Neri Tiling, Golden Isozonohedron, Golden Rhombohedron, Rhombohedron, Trigonal Trapezohedron

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References

Dietl, R. M. K. and Eschenburg, J.-H. "The Icosahedral Quasiperiodic Tiling and Its Self-Similarity." J. Geom. 108, 319-354, 2017. https://doi.org/10.1007/s00022-016-0342-2.Kabai, S. Mathematical Graphics I: Lessons in Computer Graphics Using Mathematica. Püspökladány, Hungary: Uniconstant, pp. 169 and 171, 2002.Livio, M. The Golden Ratio: The Story of Phi, the World's Most Astonishing Number. New York: Broadway Books, p. 206, 2002.

Referenced on Wolfram|Alpha

Obtuse Golden Rhombohedron

Cite this as:

Weisstein, Eric W. "Obtuse Golden Rhombohedron." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ObtuseGoldenRhombohedron.html

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