Parallel Lines cut by a transversal Review

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside the two lines and on opposite sides of the transversal. They are equal when the lines are parallel.

Front

Identify a pair of alternate exterior angles in the diagram.

Back

angle 1 & angle 7.

Front

What is the measure of corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are equal.

Front

What is the measure of alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are equal.

Front

If angle 1 = 100°, what is the measure of angle 5?

Back

Angle 5 = 100° (corresponding angle).

Front

If angle 2 = 80°, what is the measure of angle 6?

Back

Angle 6 = 80° (alternate interior angle).

Front

What is the sum of the interior angles on the same side of the transversal?

Back

The sum is 180°.

Front

If angle TLS = (x + 13)° and angle LMO = (2x - 4)°, what is the relationship between these angles if the lines are parallel?

Back

Angle TLS + Angle LMO = 180°.

Front

Solve for x: angle 1 = (3x + 10)° and angle 2 = (2x + 30)°, if angle 1 and angle 2 are supplementary.

Back

x = 20.

Front

What is the value of x if angle LMR = (x + 5)° and angle LMO = (2x - 15)°, given they are equal?

Back

x = 20.