An octagonal pyramid.
nonagon
Faces=9 Vertices: 9 Edges=16
There can be no such shape.
The shape would be impossible. The faces and vertices have to add up to two more than the edges.
Nonahedron
An octagonal pyramid.
nonagon
Faces = 9 Vertices = 9 Edges = 16
Faces=9 Vertices: 9 Edges=16
16 edges, 9 vertices.
Octagonal pyramid: 9 faces 16 edges 9 vertices.
An octagonal pyramid has 9 faces, 9 vertices, 16 edges.
An octagonal based pyramid has 9 faces, 16 edges and 9 vertices
There can be no such shape.
pentagon
A triangular prism.