Parallel and Perpendicular Lines

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet or intersect, 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

How many sets of parallel sides does a rectangle have?

Back

A rectangle has 2 sets of parallel sides.

Front

How many sets of parallel sides does a square have?

Back

A square has 2 sets of parallel sides.

Front

What is the relationship between the sides of a parallelogram?

Back

In a parallelogram, opposite sides are parallel.

Front

If two lines are perpendicular, what is the angle between them?

Back

The angle between two perpendicular lines is 90 degrees.

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 shape has no parallel sides?

Back

A triangle has no parallel sides.

Front

Identify the lines that are perpendicular: Line BG and Line AC, Line BC and Line DF, Line AC and Line FD.

Back

Line BG and Line AC are perpendicular.

Front

What is an example of parallel lines in real life?

Back

Railroad tracks are an example of parallel lines.