Complementary,Supplementary, Vertical Angles

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What angle pair is formed when two lines intersect?

Back

Vertical Angles.

Front

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

Back

90°.

Front

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

Back

180°.

Front

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

Back

They are equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines when cut by a transversal.

Front

If ∠A and ∠B are supplementary and ∠A measures 65°, what is the measure of ∠B?

Back

115°.

Front

If ∠C and ∠D are complementary and ∠C measures 30°, what is the measure of ∠D?

Back

60°.