Parallel lines cut by a transversal

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are alternate interior angles?

Back

Angles that lie between two lines and on opposite sides of a transversal.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What are alternate exterior angles?

Back

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

Front

What is the relationship of angles formed by a transversal cutting parallel lines?

Back

The angles can be classified as corresponding, alternate interior, alternate exterior, or supplementary.

Front

If angle 1 is 60°, what is the measure of angle 5?

Back

Angle 5 is also 60° (corresponding angles).

Front

If angle 2 is 127°, what is the measure of angle 3?

Back

Angle 3 is 53° (supplementary angles).

Front

Which pair of angles are vertical angles?

Back

Angle 2 and Angle 3.

Front

What is the measure of angle 8 if angle 1 is 75°?

Back

Angle 8 is also 75° (corresponding angles).

Front

What is the sum of the measures of angles 2 and 4 if they are alternate interior angles?

Back

The sum is equal to 180°.