Angles Formed by Transversals

Front

What are Alternate Interior Angles?

Back

Angles that lie between two parallel 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 Vertical Angles?

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

What are Alternate Exterior Angles?

Back

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

Front

What are Same-Side Interior Angles?

Back

Angles that lie between two parallel lines and on the same side of a transversal; they are supplementary.

Front

If angle 3 is 70°, what is the measure of its Alternate Interior Angle?

Back

70° (Alternate Interior Angles are equal when the lines are parallel).

Front

If angle 4 is 50°, what is the measure of its Corresponding Angle?

Back

50° (Corresponding Angles are equal when the lines are parallel).

Front

If angle B is 120°, what is the measure of Angle G if they are Alternate Exterior Angles?

Back

120° (Alternate Exterior Angles are equal when the lines are parallel).

Front

What is the relationship between Vertical Angles?

Back

Vertical Angles are always equal.

Front

If angle 1 and angle 4 are Vertical Angles, and angle 1 measures 30°, what is the measure of angle 4?

Back

30° (Vertical Angles are equal).