a triangular pyramid
what kind of pyramid?
An octagon based pyramid.
A pentagonal pyramid has 6 faces, 6 vertices and 10 edges.
20 faces and 10 sides
A pentagonal pyramid.
A pentagonal pyramid has 6 faces, 6 vertices and 10 edges.
A pentagonal pyramid has 6 faces, 6 vertices and 10 edges.
A pyramid
10.
A triangular pyramid has 4 of them A rectangular pyramid has 5 of them. A pentagonal pyramid has 6 of them. . . etc. It depends on what kind of pyramid it is.
I think 11 faces