File:Tetrahedron flat.svgoriginal. https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue English Net of a tetrahedron
File:Truncated tetrahedron flat.svgtetrahedron flat.svg A flattened truncated tetrahedron. Date 20 December 2006 Source Own work Author Júlio Reis SVG development InfoField The SVG code
File:Truncated tetrahedron flat.pngDescriptionTruncated tetrahedron flat.png English: Flattened polyhedron, source is en:image:makepoly.c Source Transferred from en.wikipedia to Commons
File:Foldable octahedron (coloured).jpgseries of foldable platonic solids: There are five platonic solids; the tetrahedron, hexahedron, octahedron, dodecahedron and the icosahedron. English object
File:Foldable octahedron (blank).jpgseries of foldable platonic solids: There are five platonic solids; the tetrahedron, hexahedron, octahedron, dodecahedron and the icosahedron. English object