Points, Lines, Rays, Segments, and Planes

Front

What is a point in geometry?

Back

A point is a precise location or position in space, represented by a dot and has no size or dimension.

Front

What is a line?

Back

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

Front

What is a line segment?

Back

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

Front

What is a ray?

Back

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and are always the same distance apart.

Front

What are intersecting lines?

Back

Intersecting lines are lines that 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.

Front

How do you identify a line segment in a diagram?

Back

A line segment is identified by two endpoints and is usually represented with a line over the letters of the endpoints.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What is the symbol for a ray?

Back

A ray is often represented with a line with one endpoint and an arrow indicating the direction it extends.