You are describing a cube. A cube has 6 square faces.
hexagonal prism
rectangular prism
squrae
pyramid
A cube.
the name of a shape with four faces is a square or rectangle.
hexagonal prism
rectangular prism
squrae
pyramid
A cube.
The simplest such shape is PYRAMID.
sqare based pyramid
A Pyramid
A square [based] pyramid.
square-based pyramid
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.