A Rectangular Pyramid.
4 lateral faces
Pyramid
Rectangular prism
rectangular pyramid
it has six sides, 4 identical faces and two identical bases
a rectangular prism with the same length and height but different width
4 of the faces will be identical rectangles and 2 will be slightly different identical rectangles.
a square. duuh. * * * * * duuh is correct! A square has 4 identical sides or 4 identical angles but not 4 identical faces! A shape with four identical plane faces is a regular tetrahedron or a triangle based pyramid.
cube
They are all rectangular but there can also be 4 rectangular faces and 2 square faces. Always 6 in total.
a cuboid has 4 rectangular faces and 2 square face
rectangular prism
Cone
There are many plane shapes comprising 4 squares and 2 rectangles but there is no such 3-dimensional shape.
rectangle * * * * * A rectangle has just one face! The 3-dimensional shape is a square prism.
A rectangular prism.