That old album cover fits both the definition of a square and many shapes, the square. A square is a 4-sided shape with all sides having the same length and all angles being right.
The shape is a square and a rectangle if all sides are the same length on all sides. As a result, all squares are rectangles. However, not all rectangles are squares cause the measurements of the sides of a rectangle’s pairs of sides can be different.
Squares can be found everywhere, just like rectangles. Along with album covers and stamps, think about the spaces on a chessboard, floor tiles, and even a snack of crackers and cheese as possible design elements. For most problems, you don’t need to be given much information because each side of a square is the same length as another.