A square based pyramid.
-2
A square [based] pyramid.
four triangle faces.
5 faces 8 edges 5 corners (vertexes) * * * * * Wrong! The answer given above is for a SQUARE based pyramid. A triangle based pyramid, or a tetrahedron, has 4 faces, 6 edges and 4 corners (vertices).
Maybe a Square based pyramid? * * * * * No. A triangle based pyramid (tetrahedron).
5
A square pyramid has 5 faces. It has 1 square face and 4 triangle faces.
The answer is no. A square pyramid can not have all triangle faces because the base of this particular pyramid would be a square.
It has 3 more triangular faces than square faces
It is a squared based pyramid that fits the given description.
that's easy its a triangle * * * * * That is such a nonsensical answer! A triangle is not even a polyhedron. The correct answer is an octahedron - two square based pyramids stuck together along their bases.