Parallel Lines Cut by a Transversal

Front

Vocabulary: Angles that are next to each other (share a side)

Back

Adjacent angles are angles that share a common side and vertex.

Front

Name the angle relationship: Angles that are opposite each other when two lines intersect.

Back

Vertical Angles are the angles opposite each other when two lines intersect.

Front

What angle corresponds to angle 6? (Given a diagram with angles labeled)

Back

Angle 2 corresponds to angle 6.

Front

What angle pair is pictured? (Given a diagram showing two angles in the same position on different lines)

Back

Corresponding Angles are pairs of angles that are in the same position on different parallel lines.

Front

If angle 8 is 70 degrees, how many degrees is angle 2?

Back

Angle 2 is also 70 degrees because they are corresponding angles.

Front

Definition: Angles that add up to 90 degrees.

Back

Complementary Angles are two angles whose measures add up to 90 degrees.

Front

Definition: Angles that add up to 180 degrees.

Back

Supplementary Angles are two angles whose measures add up to 180 degrees.

Front

Definition: Angles that are on opposite sides of the transversal and inside the two lines.

Back

Alternate Interior Angles are angles that are on opposite sides of the transversal and inside the two parallel lines.

Front

Definition: Angles that are on opposite sides of the transversal and outside the two lines.

Back

Alternate Exterior Angles are angles that are on opposite sides of the transversal and outside 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 when two parallel lines are cut by a transversal.