The 140 faces are:
- 20 equilateral triangles
- 60 irregular pentagons
- 60 non-equilateral, isosceles triangles
Created using Stella 4d, available at http://www.software3d.com/stella.php.
A Polyhedron with 140 Faces
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The Eighteenth Stellation of a Rhombicosidodecahedron Which Had Invisible Square Faces
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Created using Stella 4d, software which is available at http://www.software3d.com/stella.php.
Truncated Dodecahedron with Mandalas
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A flat version of the mandala on each decagonal face here may be seen in the previous post. I used Geometer’s Sketchpad and MS-Paint to make it.
To place the mandalas on the decagonal faces of a truncated dodecahedron, I used a program called Stella 4d, which you may try for yourself at http://www.software3d.com/stella.php.
It Started with 18⁰ Angles
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Polyhedron Featuring Decagons and Pentagons
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There are twelve regular decagons in this polyhedron, and sixty irregular pentagons. If the pentagons were closer to regularity, this would qualify as a near-miss to the ninety-two Johnson Solids. It is not known how many of these “near-misses” exist — primarily because this group of polyhedra lacks a precise definition.
This polyhedron was discovered with the aid of Stella 4d, software you can try for yourself at http://www.software3d.com/stella.php.
A Ninety-Faced Zonohedron
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Sixty of the faces of this zonohedron are thombi, and the other thirty are zonogonal octagons.
Software available at http://www.software3d.com/stella.php was used to create this rotating image.
A Polyhedron with 152 Faces
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The faces are:
- twelve irregular decagons
- twenty irregular nonagons
- sixty irregular pentagons
- sixty isosceles trapezoids
This polyhedron was created using Stella 4d, which may be tried for free at http://www.software3d.com/stella.php.
Nine By Five
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Flower with Five Petals
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Solar Eclipses and Mandalas On a Great Rhombcuboctahedron
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Credit where credit is due:
I found the eclipse picture with a Google-search.
The mandalas are the one in the previous post here (“Seventeen Circles”). I made it using Geometer’s Sketchpad and MS-Paint.
I used software called Stella 4d to assemble this onto the chosen polyhedron, and make the animated .gif file you see here. This software is available at http://www.software3d.com/stella.php, with a free trial download available.
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