An octagon is two dimensional and has eight sides.
Octagon
An 8 sided polygon is an octagon
Any 4 sided 2D shape
A 2D shape with forty sides is known as a tentracontagon.
Such a 2D shape is a hexagon, a six sided figure.
An octagon.
Octagon
Octagon
An 8 sided polygon is an octagon
octagon-2D Octahedron-3D
A triangle as no other 2d shape can have 3 sides.
A 2D shape with 9 sides is called a Nonagon.
The shape of 2D is a flat surface.
A regular 8 sided octagon has eight equal sides.
A 2D shape that has four sides and is thirteen letters long is a quadrilateral.
2d shapes that do not have equal sides do not usually have special names.
Any 4 sided 2D shape