it is less expensive to build.
Square No, in general they are six rectangles. Only in special cases would they be squares.
Most rooms are typically rectangular or square in shape, as these designs maximize usable space and facilitate efficient furniture placement. Some modern architectural styles may include irregular shapes or open floor plans, but rectangular dimensions remain the most common for residential and commercial spaces. This shape allows for straightforward construction and effective use of area.
A square.
A rectangular square
Nepal
square
A rectangular prism.... has four rectangular, and two square faces.
For strength of brick constructions it is useful to have them partially overlapping. A rectangular shape makes it easier to have them partly overlapping.
SpongeBob SquarePants is a square, but his pants is an rectangular shape.
A 3D shape could be:a square pyramida cubea rectangular block
A rectangular prism has six faces. Four of these must be rectangular: the other two may be square or rectangular.
Rectangular or square.