0 it only has pointy edges
There are no curved edges on a triangular pyramid.
a rectangular pyramid has a total of 8 edges
A rectangular pyramid has 8 edges. There are four edges on the base and for edges from corner to point.
There are no curved edges, but it does stack.
none
None.
12
8
8
None.
None.
A rectangular pyramid has 5 faces, 8 edges and 5 vertices. And it is not vertices's or vertices's's.