It's a 2D shape.
there isn't another name for an octagon. It is simply known as an OCTAGON
An octagon-based prism.An octagon-based prism.An octagon-based prism.An octagon-based prism.
A 3d shape with 10 sides is called a decahedron. I have added a link with some pictures of them. As you can see they look very different but all have 10 sides or faces.
An octagon
No, it is not.
It's a 2D shape.
Octagon. * * * * * An octagon is 2-dimensional. The regular 3-d shape (all faces the same) is the octahedron, but a hexagonal prism also has 8 faces.
octagon
octagon-2D Octahedron-3D
Octagon.
About 26 sides, and 24 corners.
An "octagon" is a real name!
if its 2D its a octagon, if its 3D its a octagonal prisim
The question is ambiguous. An octagon is a 2-dimensional shape with 8 edges and 8 vertices. Does a 3-D octagonal shape mean one with 8 edges or 8 faces or vertices, or faces which are 2d octagons?
octagon
octagon