the typical 4 sided pyramid with a square base has 8 edges.
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.
8
One
12
12 edges.
Six.
6 9000000000000
A square based pyramid has 5 faces, 5 vertices and 8 edges
two, one edge at each end of the cylinder
a cube has 12 edges, 6 faces and 8 vertices.
A hexagonal pyramid.