👉 In geometry, a "creasing" is an operation that involves cutting or dividing a plane into two pieces. It can be thought of as slicing through a surface while keeping it smooth and flat on both sides. Creases are commonly used in construction, engineering, and manufacturing to create thin layers of materials without a need for drilling or other tools. Creases can be defined by the distance between two points on a plane that form an angle with each other. For example, if you have a piece
