Unit 7 Flashcard: Lines, Line Segments, Rays

Front

What is a line?

Back

A straight path that extends infinitely in both directions without any endpoints.

Front

What is a line segment?

Back

Part of a line that has two endpoints.

Front

What is a ray?

Back

Part of a line that has one endpoint and extends infinitely in one direction.

Front

What are parallel lines?

Back

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

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What are intersecting lines?

Back

Lines that cross each other at any angle.

Front

How many endpoints does a line segment have?

Back

Two endpoints.

Front

How many endpoints does a ray have?

Back

One endpoint.

Front

How many endpoints does a line have?

Back

Zero 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.