Pentagonal rotunda

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The pentagonal rotunda is a convex polyhedron with regular polygonal faces. These faces comprise ten equilateral triangles, six regular pentagons, and one regular decagon, making a total of seventeen. The pentagonal rotunda is an example of Johnson solid, enumerated as the sixth Johnson solid

Excerpt from the Wikipedia article “Pentagonal rotunda”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Source: en.wikipedia (del) (cur) 07:02, 3 November 2004 . . AndrewKepert (Talk) . . 512x512 (58877 bytes) (Johnson solid #6) Johnson solid #6 Another attempt at using user:Cyp's w:en:User:Cyp/Poly.pov povray macros to automatically find faces and edges. I will update the source once I have a few more Johnson solids under control. See talk:Johnson solid for progress. This image was created with POV-Ray., CC BY-SA 3.0, via Wikimedia Commons.