बहुफलक

एक उत्तल पॉलीहेड्रॉन एक ही विमान पर नहीं, बल्कि कई बिंदुओं के उत्तल पतवार है। क्यूब्स और पिरामिड उत्तल पॉलीहेड्रा के उदाहरण हैं।

पॉलीहेड्रोन किसी भी संख्या के आयामों में अधिक सामान्य पॉलीटोप का 3-आयामी उदाहरण है।         

 बाहरी कड़ियाँ 
 सामान्य सिद्धान्त 
 Polyhedra Pages
 uniform solution for uniform polyhedra by Dr. Zvi Har'El
 Symmetry, Crystals and Polyhedra
 Symmetrohedra: Polyhedra from Symmetric Placement of Regular Polygons

 बहुफलक की सूची एवं डेटाबेस 
 The Uniform Polyhedra
 Virtual Reality Polyhedra - The Encyclopedia of Polyhedra
 Polyhedra and Pyramids
 Interactive 3D polyhedra in Java
 Electronic Geometry Models - Contains a peer reviewed selection of polyhedra with unusual properties.
 Origami Polyhedra - Models made with Modular Origami
 Polyhedra Collection - Various virtual and physical polyhedra models.
 Polyhedra plaited with paper strips - Polyhedra models constructed without use of glue.
 Rotatable polyhedron models (uses Javascript)
 Rotatable self-intersecting polyhedra (uses Java)
 Polyhedron Models - Virtual polyhedra

 Software 
 A Plethora of Polyhedra An interactive and free collection of polyhedra in JAVA. Features includes nets, planar sections, duals, truncations and stellations of more than 300 polyhedra. 
 Stella: Polyhedron Navigator - Software for exploring polyhedra and printing nets for their physical construction. Includes uniform polyhedra, stellations, compounds, Johnson solids, etc.
 World of Polyhedra - Comprehensive polyhedra in flash applet, showing vertices and edges (but not shaded faces)