Lines, Points, Rays, Line Segments

Front

What is a point in geometry?

Back

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

Front

What is a line in geometry?

Back

A line is a straight path that extends infinitely in both directions and has no endpoints.

Front

What is a ray in geometry?

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 symbol represents a line segment?

Back

Front

What symbol represents a ray?

Back

The symbol for a ray is @@ ightarrow{AB}@@, where A is the starting point and B is a point on the ray.

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 difference between a ray and a line segment?

Back

A ray has one endpoint and extends infinitely in one direction, while a line segment has two endpoints.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

How do you identify points in a diagram?

Back

Points are usually represented by dots and labeled with capital letters.