Oh, dude, a nonillion-sided polygon is called a nonillion-gon. It's like the cool kid at the polygon party with a crazy amount of sides. After that, well, I guess you just keep adding more sides until you run out of breath trying to say the name.
A five-sided polygon is called a pentagon.
A 39 sided polygon is called a 39-gon.
A thousand-sided polygon is a chiliagon.
hectoctagon is a 108 sided polygon
a hectoenneagon is a 109 sided polygon
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
A 14 sided polygon is called a tetradecagon.
A 12-sided polygon is called a dodecagon.
A million-sided polygon is called a megagon.
A 20-sided polygon is called an icosagon.
A 90-sided polygon is called an enneacontagon.
A five-sided polygon is called a pentagon.
A 13 sided polygon is called a Tridecagon also a Triskaidecagon.
what is a 50 sided polygon called?
2000 sided polygon
A 8 sided polygon is called a octagon.
A five-sided polygon is called a pentagon. A regular five-sided polygon is simply called a regular pentagon