Points, Lines, Rays, and Line Segments

Front

What is a line segment?

Back

A part of a line between two endpoints.

Front

What is a line?

Back

A straight path that extends infinitely in both directions.

Front

What is a ray?

Back

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

Front

What are parallel lines?

Back

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

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 an angle?

Back

A figure formed by two rays with a common endpoint called the vertex.

Front

How do you identify a line segment in a diagram?

Back

Look for a straight path with two endpoints marked.

Front

What does it mean for lines to be perpendicular?

Back

Two lines that intersect at a right angle (90 degrees).

Front

What is a point in geometry?

Back

A location in space that has no size or dimension.

Front

Can a line segment be measured?

Back

Yes, a line segment has a definite length that can be measured.