A 2D shape with 9 sides is called a Nonagon.
A Nonagon
nonagon
nonagon
A shape with 9 unequal sides would be called an irregular nonagon or an irregular enneagon.
A shape with 9 sides, is a nonagon.
A Nonagon
9
nonagon
A nonagon is a 2 dimensional shape that has nine sides. A polygon on the other side refers to a plane that is 2D and has three straight sides.
-7
a nonagon
nonagon
nonagon
a nonogon
A nonagon.
a nonogon
A shape with 9 unequal sides would be called an irregular nonagon or an irregular enneagon.