It's called a dodecagon or a duodecagon.
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it is called a dodecagon. this is also approved by teachers so they will not burden you!
A shape with 7 sides is a heptagon
An 11 sided shape is an Eptogon
a 5-sided shape is called a pentagon.
Why not just call it "a 130-sided shape"? because its not called that, spaz.