Nonagon
A 2D shape with 9 sides is called a Nonagon.
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.
-7
A 9-sided shape is known as a nonagon.
nonagon
A shape with 9 sides, is a nonagon.