A dodecagon
The name of a 12 sided polygon is Dodecagon.
it is called a seven sided shape in Canada
The 22 sided shape is called a: ICOSIKAIDIGON
Hommasquabblelagagon
A 90 sided shape is called Enneacontagon.
A five-sided shape is called a pentagon.
a 4 sided shape is called a quadrilateral
A seven sided shape is called a heptagon.
A 128-sided shape is called a hecatoicosioctagon.
An five sided shape is called a Pentagon
A 10-sided shape is called a decagon.
It is called a megagon. A ∞ sided shape is called an apeirogon.