Angles formed by transversals

Front

What are corresponding angles?

Back

Angles that lie on the same side of the transversal and in corresponding positions.

Front

What are alternate interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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

Front

What are consecutive interior angles?

Back

Angles that lie on the same side of the transversal and between the two parallel lines.

Front

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

Back

Corresponding angles are equal.

Front

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

Back

Alternate interior angles are equal.

Front

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

Back

Alternate exterior angles are equal.

Front

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

Back

Consecutive interior angles are supplementary (add up to 180 degrees).

Front

If angle 4 and angle 9 are corresponding angles, what can be said about their measures?

Back

Angle 4 = Angle 9.

Front

If angle 2 and angle 3 are consecutive interior angles, what can be said about their measures?

Back

Angle 2 + Angle 3 = 180 degrees.