Tool to find the name of geometric shapes. Polygons are geometrical shapes in the plane 2D and polyhedra are geometric shapes in the space 3D

Name of Geometric Shapes - dCode

Tag(s) : Geometry

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Indicate to dCode the number of sides and it will find the name.

__Example:__ 6: HEXAGON

12: DODECAGON

More generally, **polygons** are written with a prefix indicating their number of sides and the suffix *-gon*.

Here is the list as a table of all the different regular geometric shapes of the 2D plane (table of n-sided **polygon** names):

# | Name of the Polygon + Geometric Drawing |
---|---|

1 side | monogon (impossible figure in Euclidean geometry) |

2 sides | digon |

3 sides | triangle or trigon |

4 sides | quadrilateral or quadrangle or tetragon |

5 sides | pentagon |

6 sides | hexagon |

7 sides | heptagon (wrongly septagon) |

8 sides | octogon |

9 sides | enneagon (ou nonagon) |

10 sides | decagon |

11 sides | hendecagon |

12 sides | dodecagon |

13 sides | tridecagon |

14 sides | tetradecagon |

15 sides | pentadecagon |

16 sides | hexadecagon |

17 sides | heptadecagon |

18 sides | octadecagon |

19 sides | enneadecagon |

20 sides | icosagon |

21 sides | henicosagon |

22 sides | doicosagon |

23 sides | triaicosagon |

24 sides | tetraicosagon |

25 sides | pentaicosagon |

26 sides | hexaicosagon |

27 sides | heptaicosagon |

28 sides | octaicosagon |

29 sides | enneaicosagon |

30 sides | triacontagon |

31 sides | hentriacontagon |

32 sides | dotriacontagon |

33 sides | tritriacontagon |

34 sides | tetratriacontagon |

35 sides | pentatriacontagon |

36 sides | hexatriacontagon |

37 sides | heptatriacontagon |

38 sides | octatriacontagon |

39 sides | enneatriacontagon |

40 sides | tetracontagon |

50 sides | pentacontagon |

60 sides | hexacontagon |

70 sides | heptacontagon |

80 sides | octacontagon |

90 sides | enneacontagon |

100 sides | hectogon |

200 sides | dihectogon |

300 sides | trihectogon |

400 sides | tetrahectogon |

500 sides | pentahectogon |

600 sides | hexahectogon |

700 sides | heptahectogon |

800 sides | octahectogon |

900 sides | enneahectogon |

1000 sides | chiliagon |

10000 sides | myriagon |

1000000 sides | megagon |

infinite number of sides | circle |

Indicate the number of faces and it will find the name of the 3D geometrical figure.

__Example:__ 6: HEXAHEDRON

__Example:__ 12: DODECAHEDRON

Here is a table of all the regular geometric shapes/polyhedron of 3D space (table of names of n-faced **polyhedra**):

Some resources for children are great to learn shapes and other geometric figures such as here (link)

All regular **polygons** have at least one axial symmetry.

A regular **polygon** with as many axes of symmetry as it possesses sides.

The axes of symmetry pass through the center of the **polygon** and the center of each side or each vertex/corner.

All regular **polygons** with an even side number have a central symmetry (the center of the **polygon**). **Polygons** with an odd number of sides have no central symmetry.

A polytope is the generalization of a **polygon** / **polyhedron** to all dimensions.

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polygon,polyhedra,polytope,geometry,euclidean,shape,prefix,geometric,side,face,form,2d,3d,name,list

Source : https://www.dcode.fr/geometric-shapes

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