Is there a Sided Shape?
Explaining if there is a sided shape:
Yes, there is a -sided shape in geometry.
The -sided shape or -sided polygon is called the nonagon, where “Nona” means nine and “gon” means sides or enneagon, which means nine corners.
The number of vertices and edges in the nonagon is .
In a regular nonagon, each internal angle is equal to degrees, hence the sum of the angles is .