It is a nonagon in which all the sides have the same length. This should not be confused with a regular nonagon which also requires all angles to be the same.
nonagon
A nonagon is a 2D shape so you cannot make a 3D nonagon!
a nine sided polygon is called a nonagon.
A Nonagon has 9 sides
A nonagon
8
nonagon
Because nonagon means 9 sides
Not a regular nonagon.
A nonagon has nine sides.
A nonagon
"nonagon" is not a prefix.
A nonagon.
a nonagon
Nonagon.
A nonagon is a 2D shape so you cannot make a 3D nonagon!
Only if all nine sides are the same length.