A regular tetrahedron (triangular pyramid).
The 3-D shape that has 4 faces is the tetrahedron. All of its faces are triangular, and they all converge at a single vertex.
A square which has 4 equal sides
Because a tetrahedron is a triangular based pyramid that has 4 identical faces and 4 faces meet at all the vertices.
There is no shape with 4 faces and 3 vertices
A triangle based pyramid.
sorry but all i can find is 4 faces 6 edges and 4vertices's :(
They are all rectangular but there can also be 4 rectangular faces and 2 square faces. Always 6 in total.