Identifying parallel and perpendicular lines

Front

What are parallel lines?

Back

Lines that run in the same direction and never meet.

Front

What are perpendicular lines?

Back

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

Front

What does it mean for lines to intersect?

Back

Lines that cross each other at any angle.

Front

How many sets of parallel sides does a rectangle have?

Back

2 sets of parallel sides.

Front

How many sets of parallel sides does a square have?

Back

2 sets of parallel sides.

Front

What angle do perpendicular lines form?

Back

A right angle.

Front

Can two lines be both parallel and perpendicular?

Back

No, lines cannot be both parallel and perpendicular.

Front

If two lines are parallel, what can be said about the distance between them?

Back

The distance between parallel lines is constant.

Front

What is an example of perpendicular lines in real life?

Back

The corners of a square or rectangle.

Front

What is an example of parallel lines in real life?

Back

Railroad tracks.