👉 A fanfold is a type of fold that is used in geometry to represent certain objects in three-dimensional space. In this context, a "fanfold" refers to a set of lines or planes that are perpendicular to each other and intersect at right angles. In mathematics, a fanfold is defined as the set of all points in a plane such that the sum of their distances from two given points (the "pivot points") is a constant value. This constant value is known as the angle between
