In mathematics, a plane is a flat, two-dimensional surface that extends infinitely far. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space.

What is considered 2 dimensional?

Two Dimensional The 2-dimensional shapes or objects in geometry are flat plane figures that have two dimensions – length and width. Two-dimensional or 2-D shapes do not have any thickness and can be measured in only two faces. A square, circle, rectangle, and triangle are examples of two-dimensional objects.

What makes a plane in geometry?

A plane is a flat surface that extends infinitely in all directions. Given any three non-collinear points, there is exactly one plane through them.