Identifying parallel and perpendicular 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 angle do perpendicular lines form?

Back

Right angle.

Front

How many sets of parallel sides does a rectangle have?

Back

2 sets.

Front

How many sets of parallel sides does a square have?

Back

2 sets.

Front

What is an example of parallel lines in real life?

Back

Railroad tracks.

Front

What is an example of perpendicular lines in real life?

Back

The corners of a square or rectangle.

Front

What do intersecting lines do?

Back

They cross each other at any angle.

Front

If two lines are not parallel and not perpendicular, what are they called?

Back

Intersecting lines.

Front

Can two lines be both parallel and perpendicular?

Back

No, they cannot be both.