Parallel and Perpendicular Lines

Front

What are parallel lines?

Back

Parallel lines are lines that never meet or cross each other, no matter how far they are extended.

Front

What are perpendicular lines?

Back

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

Front

What does it mean when lines intersect?

Back

When lines intersect, they cross each other at a point.

Front

Which figure shows parallel lines?

Back

Parallel lines are shown in Figure 4.

Front

Which figure shows perpendicular lines?

Back

Perpendicular lines are shown in Figure 2.

Front

True or False: Parallel lines can cross each other.

Back

False. Parallel lines never cross each other.

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.

Front

What is a line segment?

Back

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

Front

What is the difference between parallel and intersecting lines?

Back

Parallel lines never meet, while intersecting lines cross each other.