Lines, Line Segments, Parallel, Perpendicular Lines

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a line segment?

Back

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

Front

What are perpendicular lines?

Back

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

Front

What are parallel lines?

Back

Parallel lines are lines that never intersect and are always the same distance apart.

Front

What is a vertical line?

Back

A vertical line goes up and down.

Front

What is a horizontal line?

Back

A horizontal line goes side to side.

Front

How can you identify a line segment?

Back

A line segment has two endpoints and a definite length.

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

Can two lines be both parallel and perpendicular?

Back

No, two lines cannot be both parallel and perpendicular at the same time.

Front

What is an example of perpendicular lines in real life?

Back

The corners of a square or rectangle are examples of perpendicular lines.