A pentagonal pyramid.
Chat with our AI personalities
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 cone by definition has only two sides. A five-sided pyramid can refer to either a square-based pyramid (four angled sides and the base) or a pentagonal-based pyramid (five visible sides).
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
If you mean a pyramid with a four sided base, it is a square pyramid. If you mean one with four faces, it is a tetrahedron.
A tetrahedron, but you can also think of it as a pyramid. -edit: actually it would be a pentahedron, which may look like a four sided pyramid in which you can see the bottom, or it may look like a triangular prism. Tetra- four, Penta- five.