Complementary, supplementary, and vertical angles

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 are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If one angle is 30°, what is its complementary angle?

Back

60°.

Front

If one angle is 120°, what is its supplementary angle?

Back

60°.

Front

What is the sum of two complementary angles?

Back

90°.

Front

What is the sum of two supplementary angles?

Back

180°.

Front

If two angles are vertical angles, what can we say about their measures?

Back

They are equal.

Front

Find the missing angle if one angle is 43° and they are complementary.

Back

47°.

Front

Find the missing angle if one angle is 95° and they are supplementary.

Back

85°.