Octagon
A hexagonal prism.
An hexagonal cross-section prism has 8 faces, 18 edges and 12 vertices
A shape with 18 edges is called an 18-gon or an 18-sided polygon in two dimensions. In three dimensions, a polyhedron with 18 edges could be a specific type of structure, such as a triangular prism with additional faces or other complex polyhedral forms. An example of a polyhedron with exactly 18 edges is the truncated tetrahedron. The characteristics of such shapes can vary widely depending on the arrangement and number of vertices and faces.
It is octagonal prism
Two polyhedrons have 18 edges: truncated tetrahedron and hexagonal prism.
a shape that has 9 faces
there are none
Octagon
A hexagonal prism
A hexagonal prism.
An hexagonal cross-section prism has 8 faces, 18 edges and 12 vertices
It is octagonal prism
An octagonal pyramid
Hexagonal Prism
corn
the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P