Heptagon – Definition, Properties, Types, Formula and Example A heptagon is a polygon that has seven sides. It is a closed figure having 7 vertices. A heptagon is also sometimes called Septagon, In Geometry, the shape that is bounded by at least three straight lines or at least three interior angles is called, The most common examples of polygons are

- Triangle ( 3 sided polygon)
- Quadrilateral ( 4 sided polygon)
- Pentagon ( 5 sided polygon)
- Hexagon ( 6 sided polygon)
- Heptagon ( 7 sided polygon)
- Octagon ( 8 sided polygon) and so on.

In this article, let’s discuss the seven-sided polygon called “Heptagon” with proper definition, shape, sides, properties along with its formula in detail. Also, read:

Contents

### How many sides does a septagon have?

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Download Wolfram Notebook 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.

### Does a heptagon have 8 sides?

Properties of Heptagon –

It has seven sides, seven angles, and seven vertices. Sum of interior angles of a heptagon is 900°.

$⦣1 + ⦣2+ ⦣3+ ⦣4+ ⦣5+ ⦣6+ ⦣7 = 900°$

It has 14 diagonals.

## What is a 100 sided shape called?

Diagonals of Nonagon – The number of diagonals of a nonagon is equal to 27. These diagonals can be observed from the below diagram. A 9-sided figure is called a nonagon in geometry. It is also called enneagon or 9-gon. A 7-sided shape is called heptagon. The total sum of the interior angles of a simple heptagon is 900°. In geometry, a decagon is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°.

In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon. The sum of all the interior angles of a hendecagon is 1620 degrees. A 13-sided polygon, sometimes also called the triskaidecagon. The sum of all interior angles of a triskaidecagon is 1980 degrees. In geometry, a dodecagon or 12-gon is any twelve-sided polygon.

The sum of all interior angles of a dodecagon is 1800 degrees. In geometry, a hectogon or hecatontagon or 100-gon is a hundred-sided polygon. The sum of all hectogon’s interior angles are 17640 degrees. : What is Nonagon? – Nonagon Shape and Properties

## How many sides is 7?

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?

In geometry, a polygon having ten sides or a ten-sided polygon is called a decagon or ten-gon.

#### 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 an 11 sided polygon called?

In geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon.

### What polygon has 35 diagonals?

A polygon has 10 sides is known as decagon. ∴ Decagon has 35 diagonals.

### What is a polygon with 9 sides?

A nine-sided shape is a polygon called a nonagon. It has nine straight sides that meet at nine corners, or vertices. The word ‘nonagon’ comes from the Latin word ‘nona’, meaning nine, and ‘gon’, meaning sides.

#### What is a 10000000 sided polygon called?

Megagon

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

A regular megagon | |

Type | Regular polygon |

Edges and vertices | 1000000 |

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

### What is a 1000000 sided shape called?

Megagon. A megagon or 1 000 000-gon is a polygon with 1 million sides (mega-, from the Greek μέγας megas, meaning ‘great’). Even if drawn at the size of the Earth, a regular megagon would be very difficult to distinguish from a circle.

## What is a 999999 sided shape called?

What do you call a 9999-sided polygon? A nonanonacontanonactanonaliagon.

#### What is a 20 sided shape called?

In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon’s interior angles is 3240 degrees.

#### What is a 13 sided shape called?

In geometry, a tridecagon or triskaidecagon or 13-gon is a thirteen-sided polygon.

### What is a 33 sided shape called?

What is the name of a polygon with?

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

32 sides | dotriacontagon |

33 sides | tritriacontagon |

34 sides | tetratriacontagon |

35 sides | pentatriacontagon |

## What are 14 sided shapes called?

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

### What is a 15 sided shape called?

In geometry, a pentadecagon or pentakaidecagon or 15-gon is a fifteen-sided polygon.

## What is a 19 sided shape called?

A 19-sided polygon, sometimes also called the enneakaidecagon.

#### What is a 120 sided polygon called?

Hence,120 sided shape is called as Dodecacontagon.

### What is a 22 sided polygon called?

Geometry, faces, Geometric, polygon, closed figure, 22 sides, twenty-two sides, icosikaidigon, 22-sided.

## What is a 17 sided polygon called?

In geometry, a heptadecagon, septadecagon or 17-gon is a seventeen-sided polygon.

### What is a 7 sided shape called a septagon?

A heptagon is a seven-sided polygon. It is also known as a septagon. The word heptagon comes from two words: ‘hepta’, meaning seven and ‘gon’ meaning sides.

### What is a 7 sided shape called?

In geometry, a heptagon or septagon is a seven-sided polygon or 7-gon.

## What is a 9 sided shape called?

What is Nonagon? – A nonagon is a polygon made up of 9 sides and 9 angles, Nonagon = Nona + gon where Nona means nine and gon means sides. The given nonagon ABCDEFGHI has sides AB, BC, CD, DE, EF, FG, GH, HI, and IA and angles ∠A, ∠B, ∠C, ∠D, ∠E, ∠F, ∠G, ∠H, and ∠I. The blue line segments AC and BD are its diagonals, There are total of 27 diagonals in a nonagon as shown below: