# Polychoron facts for kids

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.

## Images for kids

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Polychoron Facts for Kids. *Kiddle Encyclopedia.*