It has one
None.
0 - none
A hemi-sphere
A sphere has 0 edges and 0 faces. Thus implying that it has no verticies either. This is obvious. Spheres are round.
A Sphere only has one face and no verticies.
360 * unless you are working on the surface of a sphere. OK Ok we live on a sphere but we usually ignore that fact. Correction....oblate spheroid And that is tessellation.
It has five verticies.
a pyramid has 6 verticies
A cube has eight verticies.
A triangular prism has 6 verticies
A triangular prism has an amount of 4 verticies?