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
A hexagon is an example of a regular polygon with 6 sides.
A polygon, by definition is a 2d object. In 3-d it would be a polyhedron. There are a number of possible answers. One of them is a pyramid with a hendecagon (11-sided) base.