icosihenagon
Using standardized polygon names, a 54-sided polygon would be called a pentacontakaitetragon.
The name of a sided polygon is Octaconpentagon.
Applying systematic polygon names, a 75-sided regular polygon would be called a heptacontakaipentagon.
The name of a 18 sided polygon is Octadecagon.
I would just call it an "800-sided polygon."
A 5-sided polygon is called a pentagon.
I would just call it a 500-sided polygon.
Using systematic polygon naming, a twenty-two sided polygon would be called an icosakaidigon.
icosihenagon
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
Using standardized polygon names, a 54-sided polygon would be called a pentacontakaitetragon.
The name of a sided polygon is Octaconpentagon.
Applying systematic polygon names, a 75-sided regular polygon would be called a heptacontakaipentagon.
The name of a 18 sided polygon is Octadecagon.
The name of a 45 sided polygon is Tetraconpentagon.
The name of a 7 sided polygon is Heptagon.