Complementary and Supplementary 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 is an example of a pair of complementary angles?

Back

81° and 9°.

Front

Are these angles an example of complementary, supplementary, or neither? (45° and 45°)

Back

Neither.

Front

Are these angles an example of complementary, supplementary, or neither? (30° and 60°)

Back

Complementary.

Front

What is the sum of complementary angles?

Back

90°.

Front

What is the sum of supplementary angles?

Back

180°.

Front

If one angle is 70°, what is the measure of its complementary angle?

Back

20°.

Front

If one angle is 110°, what is the measure of its supplementary angle?

Back

70°.

Front

Can two angles be both complementary and supplementary?

Back

No, they cannot.