A 12-sided shape is called a dodecagon.
Parallelogram
A thirty-one sided polygon would be called a triacontakaihenagon.
Icosahedron
an angle
you call a seven sided shape a heptagon.
An 11 sided shape is an Eptogon
triannicatfora
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
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.
Parallelogram
a 9 sided shape is a nonagon
this shape is called a Pentacontagon