Perpendicular and Parallel Lines

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 is an example of parallel lines in real life?

Back

The yellow yard lines on a football field.

Front

What is an example of perpendicular lines in real life?

Back

The black lines on a Railroad Crossing sign.

Front

What do intersecting lines do?

Back

They cross each other at any angle.

Front

How can you identify perpendicular lines?

Back

They form a right angle (90 degrees) when they intersect.

Front

What is the difference between parallel and perpendicular lines?

Back

Parallel lines never meet; perpendicular lines intersect at right angles.

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 are adjacent lines?

Back

Lines that are next to each other and share a common point.

Front

What are opposite lines?

Back

Lines that are on opposite sides of a transversal and do not intersect.