Parallel Line Geometry

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

A line that crosses at least two other lines.

Front

What are alternate interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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

Front

What are corresponding angles?

Back

Angles that are in the same position on two different lines cut by a transversal.

Front

If angle 1 is 110°, what is the measure of angle 7?

Back

70°

Front

If two parallel lines are cut by a transversal, what can be said about the alternate interior angles?

Back

They are equal.

Front

If angle 3 is 45°, what is the measure of angle 5 if angle 3 and angle 5 are corresponding angles?

Back

45°

Front

What is the sum of the interior angles of a triangle?

Back

180°.

Front

If angle 2 is 135°, what is the measure of angle 4 if angle 2 and angle 4 are alternate exterior angles?

Back

135°.