👉 The "coid" is a mathematical concept that has been used in various fields such as computer science, robotics, and mathematics to represent complex geometrical shapes. It is often used in conjunction with other geometric concepts like triangles or circles to describe the shape of an object. The coid concept can be represented using a set of points on a plane, which are known as vertices. Each vertex represents a point on the surface of the object, and the set of all these points can be used to