👉 In geometry, a plane is an Euclidean space containing only two points. Plane geometry is the branch of mathematics that studies lines and angles in the plane. Planes are often used to represent shapes like polygons or circles, where they define the boundaries between different regions. They can also be used to describe the shape of curved surfaces, such as a cylinder or sphere. In the context of Euclidean space, a plane is a flat surface that extends infinitely far and has no thickness. It is defined
