An octagonal based pyramid has 16 edges and 9 vertices.
An Elongated Square Pyramid
An octagon-based pyramid.
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.
There can be no such shape.
A triangular prism.
a triangular prism
pentagon