Angle Relationships When Parallel Lines are Cut by a Transve

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect. They are always congruent (equal in measure).

Front

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

Back

Corresponding angles are equal in measure. They are located in the same position at each intersection of the transversal with the parallel lines.

Front

Define alternate interior angles.

Back

Alternate interior angles are pairs of angles that lie between two parallel lines and on opposite sides of a transversal. They are equal in measure.

Front

What are alternate exterior angles?

Back

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

Front

What is the sum of the angles on a straight line?

Back

The sum of the angles on a straight line is 180 degrees.

Front

If angle 1 is 70 degrees, what is the measure of angle 5 if they are corresponding angles?

Back

Angle 5 is also 70 degrees because corresponding angles are equal.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal in measure).

Front

Identify the angle pair: Angle 2 and Angle 6 when two parallel lines are cut by a transversal.

Back

Angle 2 and Angle 6 are alternate interior angles.

Front

If angle 3 is 50 degrees, what is the measure of angle 7 if they are vertical angles?

Back

Angle 7 is also 50 degrees because vertical angles are equal.

Front

What type of angle pair are angle 4 and angle 8?

Back

Angle 4 and angle 8 are alternate exterior angles.