A hemi-sphere
It has zero.
It has one
None.
Verticies are the corners, where edges meet. There are 5 verticies in a pyramid.
If it is a an hexagonal prism then it will have 12 vertices
None. And when you find a sphere which is not 3d I would like to know.
A triangular prism.
a Sphere is a 3d circle
A sphere has 0 edges and 0 faces. Thus implying that it has no verticies either. This is obvious. Spheres are round.
None.
A Sphere only has one face and no verticies.