Tetrahedron Built from Rhombic Dodecahedra or Spheres

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A tetrahedron can be built from rhombic dodecahedra or spheres. This Demonstration illustrates many interesting mathematical aspects, such as sphere packing, space filling, crystal lattices, sums of consecutive integers, and a relationship between tetrahedra and octahedra.

Contributed by: Sándor Kabai (November 2015)
Open content licensed under CC BY-NC-SA




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