A tetrahedron
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
There is no such shape. The only convex shape that has four faces is a tetrahedron, and that has four vertices, not 5.
A three-dimensional figure or shape, such as a tetrahedron, has four faces. These faces are equilateral triangles. A tetrahedron also has four vertices and 6 edges.
Pyramid - they have three sides and a base = four faces
Pyramid
A tetrahedron.
a square
Triangle
There is no solid shape with exactly four squares and no other faces.
A triangular based pyramid has four vertices and four faces
A pyramid
tetrahedron