Basics of Geometry Definitions

Front

What is a Ray?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

Define Coplanar points.

Back

Coplanar points are points that lie in the same plane.

Front

What is the Segment Addition Postulate?

Back

The Segment Addition Postulate states that if point B is between points A and C, then AB + BC = AC.

Front

What is a Line Segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is a Line?

Back

A line is a straight one-dimensional figure that has no endpoints and extends infinitely in both directions.

Front

What is an Angle?

Back

An angle is formed by two rays that share a common endpoint, called the vertex.

Front

If AB = 10 and BC = 5, what is AC?

Back

AC = AB + BC = 10 + 5 = 15.

Front

What are Collinear points?

Back

Collinear points are points that lie on the same straight line.

Front

What is the difference between Parallel Lines and Intersecting Lines?

Back

Parallel lines never meet and are always the same distance apart, while intersecting lines cross each other at one point.

Front

What is a Plane in geometry?

Back

A plane is a flat, two-dimensional surface that extends infinitely in all directions.