Sites:
| Polygons, Polyhedra, Polytopes: Regular, rectified, and truncated polytopes with normal and hidden-detail-removed projections. Images, animations, and links. | | Guy's Polyhedra Pages: Vertex figures, filling, faceting diagrams, stellation, defining polytopes through generators, trimethoric and trisynaptic polyhedra, space-filling polyhedra, lost stellations of the icosahedron, and links. | | Numericana - Polyhedra & Polytopes: Enumeration, cartesian coordinates of vertices, naming, and counting the shapes. | | Pick's Theorem: Describes a theorem for finding an area of simple lattice polygons. Includes proof and Java applet simulation. | | Regular Polytopes: Derivation of volume equations for regular polygons, polyhedra, and polytopes, with images. | | Sliceform Models by John Sharp: Three-dimensional objects constructed by slotting together a series of planar cross sections made from card. Downloadable templates in PDF, PS and Word formats. | | The Charged Particles Model: Polytopes and optimal packing of p points in n dimensional spheres. Contains a java applet based on a model which allows for generation of multidimensional regular and semi-regular polytopes. | | The Geometry Junkyard: Comprehensive list of links to sites on geometric properties of the shapes. | | The Mathematical Atlas - Polytopes and Polyhedra: Collection of discussions regarding volume, vertices, dissection, g-holed tori, and other subjects. | | Zome Edu: Educational toys used to teach geometry and model building to create squares, spheres, stars and other regular shapes with sticks and connecting pieces. Products include kits and lesson plans. |
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