**Asked by:**Deron Muller

**Updated:**5 November 2021 05:47:00 AM

# What is a twenty sided shape called?

A 20 sided shape (polygon) is called Icosagon. This is called 1 quadrillion. Polygons are usually named according to the number of sides, combining a Greek-derived numerical prefix with the suffix -gon, e.g. What is the interior angle of a 20 sided polygon?

## Correspondingly what is a 21 sided polygon called?

A polygon with 21 sides is therefore called a: Icosikaihenagon, but also a Icosihenagon.## Accordingly, the question is what is an 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .## Accordingly, we may wonder what is a 69 sided shape called?

Tejan Gupta answered this. Dear studebt, For such large number of sides we call them simply 69-gon and 96-gon.## Do you have your own answer or clarification?

### Related questions and answers

#### What do you call an 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### What is the biggest shape?

Myriagon

Regular myriagon | |
---|---|

Edges and vertices | 10000 |

Schläfli symbol | {10000}, t{5000}, tt{2500}, ttt{1250}, tttt{625} |

Coxeter diagram | |

Symmetry group | Dihedral (D10000), order 2×10000 |

#### Is there a 7 sided shape?

A heptagon is a seven-sided polygon. It is also sometimes called a septagon, though this usage mixes a Latin prefix sept- (derived from septua-, meaning "seven") with the Greek suffix -gon (from gonia, meaning "angle"), and is therefore not recommended.

#### What is a 69 sided polygon called?

Tejan Gupta answered this. Dear studebt, For such large number of sides we call them simply 69-gon and 96-gon.

#### What is an 18 sided shape called?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### What is a 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### How many triangles are in a 18 gon?

N | Triangles with 3 diagonal endpoints | Total Number of Triangles |
---|---|---|

16 | 560 | 37424 |

17 | 680 | 53516 |

18 | 816 | 73404 |

19 | 969 | 101745 |

#### What is a 99 sided shape called?

What is a 99 sided shape called? pentagon (5-gon), dodecagon (12-gon) or icosagon (20-gon) - with the triangle, quadrilateral and nonagon (9-gon) being notable exceptions.

#### What is the rarest shape?

Diamond. The diamond shaped face is the rarest of face shapes, and is defined by a narrow forehead, wide cheekbones and a narrow chin. Diamond shaped faces are usually narrower at the eye line and jaw line, with high and often dramatic cheekbones.

#### What is the most beautiful shape?

But the heart shape, otherwise more commonly known as a V-shaped face, has been scientifically proven to be the most visually attractive face shape to have. Heart-shaped faces like those of Hollywood star Reese Witherspoon are deemed as 'mathematically beautiful'.

#### What is the weirdest shape ever?

- In geometry, the rhombicosidodecahedron, is an Archimedean solid, one of thirteen convex isogonal nonprismatic solids constructed of two or more types of regular polygon faces.
- It has 20 regular triangular faces, 30 square faces, 12 regular pentagonal faces, 60 vertices, and 120 edges.

#### Is any 3 sided polygon a triangle?

A three-sided polygon is a triangle.