Parallel Lines cut by Transversals

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What is the value of x that proves lines r and s are parallel when cut by a transversal?

Back

43.

Front

What is the angle relationship when two angles are opposite each other when lines intersect?

Back

Vertical Angles.

Front

Find the measure of angle 1 if it is 44°.

Back

44°.

Front

What is the angle relationship when two angles are on opposite sides of the transversal and inside the parallel lines?

Back

Alternate Interior.

Front

What is the angle relationship when two angles are on the same side of the transversal and outside the parallel lines?

Back

Corresponding Angles.

Front

What is the angle relationship when two angles are on opposite sides of the transversal and outside the parallel lines?

Back

Alternate Exterior.

Front

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

Back

They are equal.

Front

If angle 3 is 60°, what is the measure of angle 4 if they are alternate interior angles?

Back

60°.

Front

What is the sum of the interior angles on the same side of the transversal when two parallel lines are cut?

Back

180°.