Transversals & Angle Relationships

Front

Which angles are alternate interior angles?

Back

Angles 4, 6 and 3, 5 are alternate interior angles.

Front

What is the relationship between angles when lines are parallel?

Back

When lines are parallel, angles can be alternate interior, alternate exterior, corresponding, or vertical.

Front

A line that passes through parallel lines is called a ______________.

Back

Transversal.

Front

If two parallel lines are cut by a transversal, what is the measure of angle 2 if angle 6 is 69 degrees?

Back

Angle 2 is also 69 degrees because they are corresponding angles.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position at each intersection where a straight line crosses two others.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside the two lines and on opposite sides of the transversal.

Front

What are same side interior angles?

Back

Same side interior angles are pairs of angles that lie between the two lines and on the same side of the transversal.

Front

If angle 1 is 111 degrees, what is the measure of angle 5 if lines are parallel?

Back

Angle 5 is 111 degrees because they are corresponding angles.

Front

What is the sum of the interior angles on the same side of a transversal?

Back

The sum of the same side interior angles is 180 degrees.

Front

If angle 3 is 21 degrees, what is the measure of angle 7 if lines are parallel?

Back

Angle 7 is 21 degrees because they are alternate interior angles.