The sides of a polygon are the line segments that limit it.

Names of the Polygons

The polygons are defined based on the number of sides it has:

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Triangle

3 sides.

 

Quadrilateral


4 sides.

 

Pentagon


5 sides.

 

Hexagon


6 sides.

 

Heptagon


7 sides.

 

Octagon


8 sides.

 

Enneagon or Nonagon


9 sides.

 

Decagon


10 sides.

 

Hendecagon


11 sides.

 

Dodecagon


12 sides.

 

Tridecagon or triskaidecagon


13 sides.

 

Tetradecagon or tetrakaidecagon


14 sides.

 

Pentadecagon


15 sides.

 

Hexadecagon


16 sides.

 

Heptadecagon


17 sides.

 

Octadecagon


18 sides.

 

Enneadecagon


19 sides.

 

Icosagon


20 sides.

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Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.