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Tag Archives: enneagon
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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Tessellation Featuring Regular Enneagons and Hexaconcave Dodecagons
Some people call ninesided polygons “nonagons,” rather than “enneagons,” but I prefer Greek prefixes to those based on Latin.
An Enneagonal Mandala
I made this years ago — in 2010 — and just found it today, on Facebook. That was two years before this blog started. I like finding such “lost works,” but it doesn’t happen often these days.
Posted in Art, Mandalas, Mathematics
Tagged Art, enneagon, geometric, geometrical, mandala, mandalas, mathematical, Mathematics, nonagon
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Four Polyhedra Featuring Enneagons
Enneagons are also called nonagons; they are polygons with nine sides. I used Stella 4d to make these four rotating polyhedra, and you may try this program for yourself at http://www.software3d.com/Stella.php.
Posted in Mathematics
Tagged enneagon, geometry, Mathematics, nonagon, polyhedra, polyhedron
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Tessellation of Blue Triangles and Yellow Concave Pentagons
Alternately, this can be seen as a tessellation of blue diconcave hexagons and yellow triconcave enneagons. Which do you see?
Posted in Mathematics
Tagged enneagon, geometry, hexagon, Mathematics, nonagon, pentagon, tessellation, triangle
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