All nine sided polygons are known as "nonagons". Nonagons that have all side lengths the same are known as "regular nonagons".
A nine sided shape or polygon is called a nonagon.
Nonagon
A 9 sided shape that how many a nonagon has.
A nonagon or enneagon is a nine sided polygon.
It is a nonagon that is 9 sided polygon
A 9 sided polygon is a Nonagon.
The name of a 51 sided polygon is Pentaconhenagon. The name of a 52 sided polygon is Pentacondigon. The name of a 53 sided polygon is Pentacontrigon. The name of a 54 sided polygon is Pentacontetragon. The name of a 55 sided polygon is Pentaconpentagon. The name of a 56 sided polygon is Pentaconheptagon. The name of a 57 sided polygon is Pentaconhexagon. The name of a 58 sided polygon is Pentaconoctagon. The name of a 59 sided polygon is Pentaconenneagon.
A 5 sided polygon is a pentagon
A pentagon is a 5 sided polygon.
A 9 sided polygon is a nonagon
The name of a 13 sided polygon is Tridecagon.
As long as the shape is enclosed, any shape of any number of sides is a polygon. The name for a six-sided polygon is a hexagon.