A pyramid. With a square base.
Chat with our AI personalities
You are a square based pyramid that has 5 faces, 8 edges and 5 vertices.
Since a cube has 6 faces, you would be looking for a solid shape with only 2 faces and no such solid exists.
There is no regular solid with 13 faces.
a sphere
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.