# What Is Plane Geometry Math?

## What is meant by plane geometry?

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 plane geometry used for?

Plane geometry deals in objects that are flat, such as triangles and lines, that can be drawn on a flat piece of paper.

## How do you identify a plane in geometry?

Three non-collinear points determine a plane. This statement means that if you have three points not on one line, then only one specific plane can go through those points. The plane is determined by the three points because the points show you exactly where the plane is.

## Is Triangle a plane?

Because a triangle is made up of three non co-linear points, a triangle can be classified as a plane itself.

## What geometry means?

Geometry is a branch of mathematics that studies the sizes, shapes, positions angles and dimensions of things. Flat shapes like squares, circles, and triangles are a part of flat geometry and are called 2D shapes.

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## What is a real life example of a plane in geometry?

Examples of a plane would be: a desktop, the chalkboard/whiteboard, a piece of paper, a TV screen, window, wall or a door.

## Is a circle a plane shape?

A circle is a plane closed figure enclosed by a curve, having no sides and no corner (vertex). Every point in the curve is situated at equal distance from a definite point within the closed figure.

## Is a straight line considered a shape?

A line, on the other hand, is one-dimensional. It extends infinitely in either direction and has no thickness. It’s not a shape because it has no form. Though we may represent points or lines as shapes because we need to actually see them, they don’t actually have any form.

## Who founded the plane geometry?

The Greek mathematician Euclid was the first to study plane geometry carefully. His book Elements was the standard plane geometry textbook for centuries.

## What are the 3 types of geometry?

There are three basic types of geometry: Euclidean, hyperbolic and elliptical.

## What is a ray in geometry?

Like a sunray, a ray is part of a line that has a fixed starting point but does not have an endpoint. A ray can extend infinitely in one direction, meaning that a ray can go on forever in one direction.

## What is another name for a plane geometry?

Other names for plane R are plane SVT and plane PTV. b. Points S, P, and T lie on the same line, so they are collinear. Points S, P, T, and V lie in the same plane, so they are coplanar.

## Can a plane be any shape?

A closed, two-dimensional or flat figure is called a plane shape. Different plane shapes have different attributes, such as the numbers of sides or corners. A side is a straight line that makes part of the shape, and a corner is where two sides meet. A circle is a round shape that has no sides or corners.

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## Is a hexagon a plane shape?

The word hexagon comes from the root words of hexa, or six, and gon which means plane shape with angles. This means a hexagon is a six-sided plane shape with six angles.

## Is rhombus a plane shape?

A rhombus is a quadrilateral ( plane figure, closed shape, four sides) with four equal-length sides and opposite sides parallel to each other. Diagonals of a rhombus always bisect each other at right angles. 