Points, Lines, Rays, Segments, and Planes

Front

What is a line?

Back

A line is straight and extends in opposite directions forever, such as a number line.

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

What is a line segment?

Back

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

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What is a plane?

Back

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

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 notation for a ray?

Back

A ray is usually denoted by two points, with the first point being the endpoint, such as ray AB.

Front

How do you name a line?

Back

A line can be named using any two points on the line, such as line AB.

Front

What is an example of a real-world line?

Back

A straight road can be considered an example of a line.

Front

What is an example of a real-world ray?

Back

A flashlight beam can be considered an example of a ray.