how many sides does a cross has
In two dimensions, 12. In 3 dimensions, 24.
cross them over. i.e. draw a line matching together the opposite vertices so you get a cross in the middle.
Vertices.
16 vertices.16 vertices.16 vertices.16 vertices.
A pentacontagon has 50 vertices (not vertices's!).
8 vertices
Eight vertices
it has 30 vertices
11 vertices
4 vertices
8 vertices.