Polychoron
four-dimensional polytope
![]() 4-simplex (5-cell) |
![]() 4-orthoplex (16-cell) |
![]() 4-cube (Tesseract) |
![]() 24-cell |
![]() 120-cell |
![]() 600-cell |
Graphs of six convex regular 4-polytope. |
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In geometry, a polychoron (plural: polychora) is a figure in four dimensions. The word comes from Greek poly, which means many and choros which means room, or space. Sometimes the figure is called 4-polytope or polyhedroid. The analogue figure in two dimensions is a polygon, and the one in three dimensions is a polyhedron.
![](http://up.wiki.x.io/wikipedia/commons/thumb/2/22/Hypercube.svg/250px-Hypercube.svg.png)
Other websites
change- Eric W. Weisstein, Polychoron at MathWorld.
- Four dimensional figures page
- Jonathan Bowers: Uniform polychora