Q:
# What Is a Plane in Geometry?

**In geometry, a plane is defined as a flat, infinite surface.** It has infinite length and width but no thickness. A plane is thus a two-dimensional, boundless surface and a subset of space.

A plane is also defined as a set of points. Three noncollinear points, or points that don't lie on a single line, are said to lie in a unique plane. There are infinite points in a plane. A line and a point not lying on this line are also said to lie in a unique plane. In geometry, a plane is often represented as a four-sided figure on paper, which allows for the study of planes. The top of a table, the surface of a book and a page in a book are examples of portions of a plane.

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Q:
## What Is Spherical Geometry?

A: Spherical geometry is the branch of mathematics that deals with figures placed on the surface of a sphere. It can also be defined as a three-dimensional vi... Full Answer >Filed Under: -
Q:
## What Is Square to Plane As Cube Is To?

A: A square is to a plane as a cube is to a volume. A square, a two-dimensional shape, exists on a plane, which is a two-dimensional space. Similarly, a cube ... Full Answer >Filed Under: -
Q:
## Who Invented the Cartesian Plane?

A: The French philosopher and mathematician Rene Descartes invented the Cartesian plane in the 17th century. The name Cartesian is derived from Descartes' own... Full Answer >Filed Under: -
Q:
## What Are Two Different Ways to Name a Plane?

A: A geometric plane can be named as a single letter, written in upper case and in cursive lettering, such as plane Q. A plane can also be named by identifyin... Full Answer >Filed Under: