There are many polyhedra. Some of them are:
A heptagonal pyramid,
A hexagonal dipyramid
A parallelepiped (including cuboids, and more irregular versions)
no shape equals to that
A heptagon based prism has 8 vertices and it can roll.
No. An octagon has 8 vertices. A hexagon is the shape that has 6 vertices.
An octagon, a cube, a seven-sided pyramid.
It is an octagon
cube
A rectangular prism has 8 vertices. A rectangular pyramid has 5 vertices.
octagon
A cube.
there are none
8.
None. A shape with four faces is a tetrahedron and that has 4 vertices, not 6.