None.A triangle (not traingle) has 3 vertices (not vetices).
A tetrahedron.
5 vertices
There is no limit to the number of vetices or faces that a shape can have.
It is a cube or a cuboid
A circle
None.A triangle (not traingle) has 3 vertices (not vetices).
hexagon
3
5
One
A pentagon
8 vertices.
A tetrahedron.
5 vertices
A nonagon has 9 vertices
A dodecagon has 12 sides and vertices.