Transversal and Parallel Lines

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

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

Back

Corresponding angles are equal in measure.

Front

If two angles are supplementary, what is the sum of their measures?

Back

The sum of supplementary angles is 180 degrees.

Front

If angle 6 is 25 degrees, what is the measure of angle 7 if they are linear pairs?

Back

Angle 7 is 155 degrees.

Front

What are alternate interior angles?

Back

Alternate interior angles are the pairs of angles on opposite sides of the transversal but inside the two lines. They are equal when the lines are parallel.

Front

If ∠1 and ∠2 are supplementary and ∠1 is 110 degrees, what is ∠2?

Back

∠2 is 70 degrees.

Front

What is the measure of angle D if it is given as ∠D=116°?

Back

Angle D measures 116 degrees.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are the pairs of angles on opposite sides of the transversal but outside the two lines. They are equal when the lines are parallel.

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of complementary angles is 90 degrees.

Front

What is the measure of ∠2 if it is given as 142 degrees?

Back

Angle 2 measures 142 degrees.