## What are the names of polygon from 1 to 20?

Terms in this set (18)

- Three. Trigon or Triangle.
- Four. Tetragon or Quadrilateral.
- Five. Pentagon.
- Six. Hexagon.
- Seven. Heptagon.
- Eight. Octagon.
- Nine. Nonagon or Enneagon.
- Ten. Decagon.

## What is the name of polygons 1 100?

Polygon Shapes 1-100 with Sides and Pictures

Name of Polygon | Number of Sides |
---|---|

Hexagon | Six – 6 |

Heptagon | Seven – 7 |

Octagon | Eight – 8 |

Nonagon/enneagon | Nine – 9 |

**What are the 11 polygons?**

List of n-gons by Greek numerical prefixes

Sides | Names | |
---|---|---|

8 | octagon | |

9 | enneagon | nonagon |

10 | decagon | |

11 | hendecagon |

### What is the name of 20 polygon?

icosagon

Side | Name |
---|---|

17 | heptakaidecagon |

18 | octakaidecagon |

19 | enneakaidecagon |

20 | icosagon |

### What are the names of the 12 polygons?

Polygons: How Many Sides?

3 | triangle, trigon |
---|---|

10 | decagon |

11 | hendecagon |

12 | dodecagon, duodecagon |

13 | triskaidecagon, tridecagon |

**What is a 12 sided polygon?**

A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.

#### What is a polygon with 99 sides called?

What is a 99 sided shape called? In geometry, an enneacontagon or enenecontagon or 90-gon is a ninety-sided polygon. Thus, the 99 sided shape is called nonacontakainonagon or enneacontanonagon. Here, enneaconta is the prefix for the number of sides numbered from 90 to 99.

#### What is the name of a 11 and 12 sided polygon?

∴ 11 sided and 12 sided polygons are called Hendecagon and Dodecagon respectively.

**What’s a 12 sided polygon?**

dodecagon

A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.

## What are the names of these polygons?

Types of Polygons

- 3 sides – Triangle.
- 4 sides – Quadrilateral.
- 5 sides – Pentagon.
- 6 sides – Hexagon.
- 7 sides – Heptagon.
- 8 sides – Octagon.
- 9 sides – Nonagon.
- 10 sides – Decagon.

## What is a polygon with 12 sides called?

**What polygon has 13 sides?**

Tridecagon

A 13-sided polygon, sometimes also called the triskaidecagon.

### What are all the polygons names?

– monogon (Monogon and digon can only. – digon be used in rather special. – trigon, triangle circumstances. Trigon and. – tetragon, quadrilateral tetragon are alternatives to. – pentagon triangle and quadrilateral; – hexagon the adjectival forms trigonal. – heptagon and tetragonal are more common.) – octagon.

### What are the names of regular polygons?

Regular and Irregular Polygons. Regular polygons have congruent sides and interior angles.

**What are the names of a 11 sided polygon?**

A Regular Polygon: it consists of congruent sides and interior angles.

#### What are the 12 polygons?

Equilateral triangle – Having all sides equal and angles of equal measure. It is also called an equiangular triangle.