What is a Pentagon? – A 2D polygon with five sides and five angles is called a pentagon. “Penta” means “five”, and “gon” translates to “angles” in Greek, and hence when we combine both words “penta + gon”, we get the word “pentagon”.

Contents

### Is a pentagon 6 sides?

Pentagon – Definition, Shape, Properties, Types, Formula & Example A pentagon is a geometrical shape, which has five sides and five angles. Here, “Penta” denotes five and “gon” denotes angle. The pentagon is one of the, The sum of all the interior angles for a regular pentagon is 540 degrees. Table of contents: In Geometry, we study about different types of shapes. The two-dimensional shape that is composed of straight lines and interior angles is known as a polygon. The examples of polygons are:

- Triangle (three-sided polygon)
- Quadrilateral (four-sided polygon)
- Pentagon (five-sided polygon)
- Hexagon (six-sided polygon)
- Heptagon (seven-sided polygon)
- Octagon (eight-sided polygon) and so on.

In this article, you can learn about the five-sided polygon called “pentagon” with proper definition, shape, sides, properties along with its perimeter and area of a pentagon formula in detail.

## Is a pentagon 8 sides?

A five-sided shape is called a pentagon. A six-sided shape is a hexagon, a seven-sided shape a heptagon, while an octagon has eight sides The names of polygons are derived from the prefixes of ancient Greek numbers.

### Is a pentagon 180 or 360?

As, the number of sides in a pentagon is 5, n=5. Thus, the sum of exterior angles of a pentagon = 5(360°/5) = 360°.

#### Does a pentagon have 10 sides?

A pentagon has 5 sides and 5 angles.

## What is a 7 sided shape called?

Learn about heptagons and how they can be identified. A heptagon is a 7 sided shape, or more specifically, a 7 sided polygon. Regular heptagons have seven equal sides and seven equal angles.

#### What is a 10 sided shape called?

Decagon Definition – In geometry, a polygon having ten sides or a ten-sided polygon is called a decagon or ten-gon. It also has ten vertices and ten angles. In the above image, there are 10 sides: AB, BC, CD, DE, EF, FG, GH, HI, IJ, and AJ. There are 10 angles. Decagon interior angles: $\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $,$\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $, and $\angle\text $ There are 10 vertices: A, B, C, D, E, F, G, H, I, and J.

### What is a 12 sided polygon?

What is a 12-sided shape? – A 12 sided shape is a polygon called a dodecagon. Basically, a dodecagon is a polygon made up of 12 sides, 12 angles, and 12 vertices. The name of this 12-sided shape comes from the Greek words ‘dodeka’ and ‘hedra’, that mean ‘twelve’ and ‘seat/base’. Dodecagons can be regular, which mean that all the interior angles and sides are equal in measure, and irregular, which means that the angles and sides have different measurements.

## What is a 9 sided shape called?

What is Nonagon? – Nonagon Shape and Properties In geometry, we may come across different as shown in the figure given below. All of these polygons have different properties based on the number of sides and angles they have. A nonagon is a nine sided polygon and it is also called an Enneagon or 9-gon, In other words, a nonagon is a nine sided closed two dimensional figure. Here, a 3-sided polygon is a triangle, 4 sided polygon is a quadrilateral, 5-sided polygon is a pentagon, 6-sided polygon is a hexagon, 7-sided polygon is heptagon, 8-sided polygon is octagon, 9-sided polygon is called a nonagon and a 10-sided polygon is the decagon.

### Why is an 11 sided shape called?

A hendecagon is an 11 sided shape with 11 corners. It is sometimes referred to as an 11-gon. In the 2D polygon family, it has one more corner/side than a decagon and one less corner/side than a dodecagon.

#### Are all polygons 180?

Exterior Angles – Exterior angles of a polygon are the angles at the vertices of the polygon, that lie outside the shape. The angles are formed by one side of the polygon and extension of the other side. The sum of an adjacent interior angle and exterior angle for any polygon is equal to 180 degrees since they form a linear pair.

Exterior angle of a polygon = 360 ÷ number of sides |

#### What is 180 to 360 called?

Angles between 180 and 360 degrees (180° reflex angles. Angles that are 360 degrees (θ = 360°) are full turn.

## What is a 14 sided shape called?

In geometry, a tetradecagon or tetrakaidecagon or 14-gon is a fourteen-sided polygon.

### What is a 1000 sided pentagon?

From Wikipedia, the free encyclopedia

Regular chiliagon | |
---|---|

A regular chiliagon | |

Type | Regular polygon |

Edges and vertices | 1000 |

Schläfli symbol | , t, tt, ttt |

Coxeter–Dynkin diagrams | |

Symmetry group | Dihedral (D 1000 ), order 2×1000 |

Internal angle ( degrees ) | 179.64° |

Properties | Convex, cyclic, equilateral, isogonal, isotoxal |

Dual polygon | Self |

A whole regular chiliagon is not visually discernible from a circle. The lower section is a portion of a regular chiliagon, 200 times as large as the smaller one, with the vertices highlighted. In geometry, a chiliagon () or 1,000-gon is a polygon with 1,000 sides.

#### What is a 11 sided pentagon?

A hendecagon is a shape with 11 sides and 11 vertices (corners).

#### What is a 700 sided shape called?

What is the name of a polygon with?

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

700 sides | heptahectogon |

800 sides | octahectogon |

900 sides | enneahectogon |

1000 sides | chiliagon |

### What is a 8 sided shape called?

Octagon Shape – Definition, Properties, Formula, Examples, Sides and angles In geometry, Octagon is a polygon that has 8 sides and 8 angles. That means the number of vertices and edges of an octagon is 8, respectively. In simple words, the octagon is an 8-sided, also called 8-gon, in a two-dimensional plane.

## What is a 1000000 sided shape called?

From Wikipedia, the free encyclopedia

Regular megagon | |
---|---|

A regular megagon | |

Type | Regular polygon |

Edges and vertices | 1000000 |

Schläfli symbol | , t, tt, ttt, tttt, ttttt, tttttt |

Coxeter–Dynkin diagrams | |

Symmetry group | Dihedral (D 1000000 ), order 2×1000000 |

Internal angle ( degrees ) | 179.99964° |

Properties | Convex, cyclic, equilateral, isogonal, isotoxal |

Dual polygon | Self |

A megagon or 1,000,000-gon (million-gon) is a polygon with one million sides ( mega-, from the Greek μέγας, meaning “great”, being a unit prefix denoting a factor of one million).

## What is a 999 sided shape?

The more sides you add to a regular shape, the more it tends towards being a circle. This is a 999 sided shape called an enneahectaenneacontakaienneagon (looks pretty much like a circle.)

#### What is a 80 sided shape called?

Names of Polygons

Name | Sides | Interior Angle |
---|---|---|

Octacontagon | 80 | 175.5° |

Enneacontagon | 90 | 176° |

Hectagon | 100 | 176.4° |

Chiliagon | 1,000 | 179.64° |

#### Does a pentagon have 5 or 6 sides?

Types of Pentagon – Does every Pentagon look the same? Each Pentagon has five sides, so how can they look different? First, to qualify as a pentagon, five sides are a must and five angles. However, all these sides and angles are different in every Pentagon. That is where pentagons differ. As a consequence, types of pentagons based on sides and angles are listed below:

### What is a 8 sided shape called?

Octagon Shape – Definition, Properties, Formula, Examples, Sides and angles In geometry, Octagon is a polygon that has 8 sides and 8 angles. That means the number of vertices and edges of an octagon is 8, respectively. In simple words, the octagon is an 8-sided, also called 8-gon, in a two-dimensional plane.

### What is a 10 sided shape called?

Decagon Definition – In geometry, a polygon having ten sides or a ten-sided polygon is called a decagon or ten-gon. It also has ten vertices and ten angles. In the above image, there are 10 sides: AB, BC, CD, DE, EF, FG, GH, HI, IJ, and AJ. There are 10 angles. Decagon interior angles: $\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $,$\angle\text $, $\angle\text $, $\angle\text $, $\angle\text $, and $\angle\text $ There are 10 vertices: A, B, C, D, E, F, G, H, I, and J.

#### What is a 9 sided shape called?

What is Nonagon? – Nonagon Shape and Properties In geometry, we may come across different as shown in the figure given below. All of these polygons have different properties based on the number of sides and angles they have. A nonagon is a nine sided polygon and it is also called an Enneagon or 9-gon, In other words, a nonagon is a nine sided closed two dimensional figure. Here, a 3-sided polygon is a triangle, 4 sided polygon is a quadrilateral, 5-sided polygon is a pentagon, 6-sided polygon is a hexagon, 7-sided polygon is heptagon, 8-sided polygon is octagon, 9-sided polygon is called a nonagon and a 10-sided polygon is the decagon.