A five sided pyramid! Ha!
Eight.
5 edges
5, how could you not know that?
A quadrilateral based pyramid, of which a square based pyramid would be a special case.
pentagonal pyramid
A five sided pyramid! Ha!
a pyramid
5
there are 5
Eight.
5
well actually it is a prism. If you mean a 5 sided pyramid with the 6 side being the bottom it would be called a Pentagonal Pyramid
A 7 sided pyramid would be called a heptahedral or heptahedron.
4-sided pyramid.
A pyramid
5 edges