👉 In geometry, a quoin is a segment that joins two points on a straight line or on a curve. It can be thought of as a point where two lines meet in a single point. Quoins are used to define the shape of curves such as circles and parabolas. Quoins can be defined using other terms like "points of intersection" or "intersection points." In geometry, quoin is also referred to as a "point of contact" or "endpoint." In mathematics
