Regular Polyhedrons Small 320×106 Medium 640×212 Large 1024×340 Download Tiff Original 2400×796 | (1.3 MB) Description Illustration of regular polyhedrons: tetrahedron, hexahedron, octahedron, dodecahedron, icosahedron. Keywords dodecahedron, geometric solid, hexahedron, icosahedron, octahedron, polyhedrons, regular polyhedron, solids, tetrahedron Galleries Miscellaneous Solid Forms Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 331