Order in Space: A Design Source Book

3-fold axis 5-fold symmetry all-space-filling allocated analogous to pattern angles apices Archimedean solids axes bifurcation broken lines Buckminster Fuller centre centre-point circumspheres close-packing configuration cuboctahedron or dymaxion degrees of freedom deltahedra diagonal Diagram dimensional drawing shows dual edge length eight semi-regular enantiomorphic equal spheres equilateral triangles equilibrium equipartitions five regular solids four fourteen demi-regular patterns Geometry Golden Mean rectangle grids grouping hedron hexagon hexagonal faces icosahedral pattern indicated lattices master solid morphic n₁ nodal conditions node nuclear sphere nucleus octagon octahedral octahedron and cube packing pentagon plane Platonic solids points of contact polygons polyhedra position regular pattern relationship representatives result rhombic dodecahedron rhombic faces rhombicuboctahedron rotation semi-regular solids shaded shapes shown six square faces snub snub-tetrahedron space space-filling spherepoints structural subdivision surface tetractys tetrahedral transformation trapezoids triangular faces truncated cube truncated icosahedron truncated icosidodecahedron truncated octahedron truncated tetrahedron twelve degrees twelve pentagons twelve spheres unit edge vertex viewed