# What Are Two Different Ways to Name a Plane?

A geometric plane can be designated by a single capital letter written in cursive, such as plane Q. You can also designate a plane by recognising three distinct points that do not make a straight line.

In geometry, a plane is a flat surface that extends indefinitely in all directions and has zero thickness. Due of its proportions, it does not resemble any actual surface or item. It is like if a sheet of paper, a whiteboard, or a tabletop extended indefinitely in every direction. Although geometric planes have no real-world uses, they are a valuable geometric tool.

A geometric plane is the third element in a mathematical progression that begins with a point and concludes with a solid object. On a plane is found a point with zero dimensions. Two points on a plane define a one-dimensional line as the second element in the series. A plane, the third dimension in the series, can include any number of points and lines. The final item in the series is a three-dimensional solid.

Similar to how a line is defined by two distinct points, a plane is defined by any three points that are not on the same line. Plane ABC is an illustration of this, as points A, B, and C do not form a single line on the plane.

Parallel planes are two planes that are equally spaced at all points and extend indefinitely. Therefore, they never intersect. Perpendicular planes are planes in which two intersecting lines make a right angle of 90 degrees. Two perpendicular to a third plane planes are either parallel to one another or intersect at a point.

A coordinate plane is a plane with both x- and y-axes. These two axes are utilised to determine the location of points on the coordinate plane. On a coordinate plane, both the x- and y-axes are numbered, with values on the x-axis increasing from left to right and values on the y-axis increasing from zero in a positive direction. On a coordinate plane, the x-axis and y-axis are perpendicular, and the point where they cross at zero is known as the origin.