An 81-sided polygon is called an "octacontagon." In geometry, the prefix "octa-" refers to eight, and "contagon" refers to a polygon, so it signifies a figure with 80 sides. The term can also be derived from Greek, where "ochto" means eight and "gonia" means angle.
name of 4000 sided polygon
The name of a 200 sided polygon is dihectagon.
The name of a 600 sided polygon is Hexcosiagon.
there is no such thing as two-sided polygon.
The name of a sided polygon is Octaconpentagon.
The name of a 12 sided polygon is Dodecagon.
A 8 sided polygon is called a octagon.
name of 4000 sided polygon
The name of a 10 sided polygon is Decagon.
The name of a 9 sided polygon is Nonagon.
The name of a 19 sided polygon is enneadecagon.
The name of a 17 sided polygon is Heptadecagon.
The name of a 15 sided polygon is Pentadecagon.
The name of a 7 sided polygon is Heptagon.
The name of a 8 sided polygon is Octagon.
The name of a 14 sided polygon is Tetradecagon.
The name of a 99 sided polygon is enneacontaenneagon.