Three Polyhedra, Each Featuring One Dozen Regular Icosagons

Icosagons are polygons with twenty sides, and do not appear in any well-known polyhedra. The first of these three regular-icosagon-based polyhedra has 122 faces.

122 faces including 12 regular icosagons

The second of these polyhedra, each of which bears an overall resemblance to a dodecahedron, has 132 faces.

132 faces including 12 regular icosagons

Finally, the third of these polyhedra has a total of 152 faces.

152 faces ncluding 12 regular icosagonsI used Stella 4d to make each of these virtual polyhedron models — and you may try this program for free at http://www.software3d.com/Stella.php.

Cube-Based Polyhedron Featuring Regular Icosagons, Equilateral Triangles, Isosceles Trapezoids, and Rectangles

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Polyhedron Featuring Regular Icosagons, Equilateral Triangles, Trapezoids, and Rectangles

Created with software you can try and/or buy at http://www.software3d.com.Stella.php.