A cuboid or a rectangular prism.
Rectangular prism
Squares have four equal sides and equal angles, rectangles only have two.
Squares and rectangles have a two-dimensional shape with four sides and four right angles.
You need 4 rectangles and two squares * * * * * No, you do not need to have squares: there can be six rectangles - as in a brick shape.
A prism.
A rectangular prism is a three dimensional shape. The two bases are squares and the four sides are rectangles.
Rectangles and squares.
rectangles, squares
A box made of four identical rectangles for the front/top/back/bottom and the end pieces are squares.
Squares and rectangles.
12 rectangles and 12 squares
16 - four in each !