Four
One
12 edges.
12
Six.
6 9000000000000
two, one edge at each end of the cylinder
a cube has 12 edges, 6 faces and 8 vertices.
A square (not sqare) based pyramid has 5 faces, 5 vertices (not verycies) and 8 edges (not egdes). You could try using a spell-checker.
the typical 4 sided pyramid with a square base has 8 edges.
An octagon has 8 sides.
An octagon has 8 edges