A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
A million-sided polygon is called a megagon.
A 12-sided polygon is called a dodecagon.
A 20-sided polygon is called an icosagon.
A 25 sided polygon is called a icosikaipentagon.
Oh, dude, a 36-sided shape is called a "hexatriacontagon." Yeah, I know, sounds like something a wizard would conjure up. So, if you ever need to impress someone at a party with your knowledge of obscure shapes, now you're all set. You're welcome.
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
A million-sided polygon is called a megagon.
A 12-sided polygon is called a dodecagon.
A 20-sided polygon is called an icosagon.
A 25 sided polygon is called a icosikaipentagon.
A 14 sided polygon is called a tetradecagon.
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.
triacontakaihexagon
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