Complementary, Supplementary, and Vertical Angles

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What kind of angles are shown when two angles add up to 180°?

Back

Supplementary angles.

Front

What angle pair is formed when two lines intersect?

Back

Vertical angles.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

If two angles are adjacent and supplementary, what is their relationship?

Back

They share a common side and add up to 180°.

Front

If ∠A and ∠B are supplementary and ∠A = 70°, what is ∠B?

Back

∠B = 110°.

Front

What is the measure of the missing angle if one angle is 20° and they are supplementary?

Back

160°.

Front

If ∠2 = 83°, what is the measure of its vertical angle ∠3?

Back

∠3 = 83°.

Front

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

Back

They are equal.

Front

If two angles are complementary and one angle measures 30°, what is the measure of the other angle?

Back

60°.