Parallel and Perpendicular lines

Front

What are parallel lines?

Back

Lines in a plane 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 the slope of parallel lines?

Back

Parallel lines have the same slope.

Front

What is the slope of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

Identify alternate exterior angles.

Back

Angles that are on opposite sides of a transversal and outside the two lines.

Front

What is a transversal?

Back

A line that intersects two or more lines in a plane.

Front

Back

Front

Back

They are parallel.

Front

Back

They are perpendicular.

Front

What is the relationship between corresponding angles when two lines are parallel and cut by a transversal?

Back

Corresponding angles are equal.