A hendecagon or endecagon.
In geometry, a hendecagon is an 11-sided polygon.
An octagon is a two-dimensional polygon with eight sides which can be regular or irregular
Ha ha. Polygons are 2D. There are no sides.
As a 2D polygon shape it is an 8 sided octagon.
hexagon
A polygon with seven sides is a heptagon.
A hexagon is a 6-sided polygon 2D shape.
A 14 sided polygon is called a tetrakaidecagon.
A ten-sided 2D polygon is known as a decagon.
An 8 sided polygon is an octagon
An endecagon
A hexagon is an example of a regular polygon with 6 sides.