Oh, dude, that's easy! A 200-sided polygon is called a dihectakaitetragon. You know, because "di" means two, "hecta" means hundred, and "kaitetragon" is just a fancy way of saying polygon. So yeah, it's like a super fancy shape with way too many sides to count.
The name of a 12 sided polygon is Dodecagon.
A 8 sided polygon is called a octagon.
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 200 sided polygon is dihectagon.
A dihectagon.
The name of a 12 sided polygon is Dodecagon.
name of 4000 sided polygon
A 8 sided polygon is called a octagon.
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.