you call a seven sided shape a heptagon.
An 11 sided shape is an Eptogon
Centrinogon
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
myriagon
A nine sided shape or polygon is called a nonagon.
A seven sided shape is called a heptagon.
Why not just call it "a 130-sided shape"? because its not called that, spaz.
A five sided geometric shape is called a pentagon.
Well, isn't that just a delightful question? A shape with 118 sides is called a "hectatontagon." Just imagine all the happy little angles and lines creating such a unique and special shape. Remember, there are no mistakes in geometry, just happy little discoveries.
it is a called a chiliagon