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 Stars, Pentagons, and Rhombi
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 The Eighteenth Stellation of the Rhombicosidodecahedron Is an Interesting Polyhedral Compound
 The EqualEdgeLength, PyramidAugmented Rhombicosidodecahedron
 A Tessellation of Star Octagons, and Two Sizes of Squares
 Nine Circles Imitating a FourLeaf Clover
 The Regular Enneagon, and Three Regular Enneagrams
 An Arrangement of Circles Based on the Euclidean Construction of the Pentagon
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 An Octahedron, Augmented with Eight Great Icosahedra
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Category Archives: Mathematics
The Eighteenth Stellation of the Rhombicosidodecahedron Is an Interesting Polyhedral Compound
The 18th stellation of the icosidodecahedron, shown above, is also an interesting compound. The yellow component of this compound is the rhombic triacontahedron, and the blueandred component is a “stretched” form of the truncated icosahedron. This was made using Stella … Continue reading
Posted in Mathematics
Tagged compound, geometry, Mathematics, polyhedra, polyhedron, rhombic triacontahedron, rhombicosidodecahedron, stellation
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The EqualEdgeLength, PyramidAugmented Rhombicosidodecahedron
The only difference between these two images is that the lower one is in “rainbow color mode.” Both were created using Stella 4d, which you can try for free at this website. I once made a physical model of this … Continue reading
Posted in Mathematics
Tagged geometry, Mathematics, polyhedra, polyhedron, rhombicosidodecahedron
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The Regular Enneagon, and Three Regular Enneagrams
The red figure above is a regular enneagon, or ninesided polygon, and it has three regular enneagrams (or “star enneagons”) inside it. The light blue figure is called a {9,2} enneagram. The green figure can be viewed two ways: as … Continue reading
Posted in Mathematics
Tagged enneagon, enneagram, geometry, Mathematics, nine, nonagon, nonagram, polygon, star
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An Octahedron, Augmented with Eight Great Icosahedra
You can’t see the octahedron; it’s hidden at the center of the figure. I used Stella 4d to make this. You can try that program for yourself at http://www.software3d.com.
Posted in Mathematics
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