Supplementary and Complementary

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If ∠A and ∠B are supplementary and ∠A measures 70°, what is the measure of ∠B?

Back

110°

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

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

Back

60°

Front

What is the sum of the measures of two supplementary angles?

Back

180 degrees.

Front

What is the sum of the measures of two complementary angles?

Back

90 degrees.

Front

If ∠E measures 45°, what is the measure of its supplementary angle?

Back

135°

Front

If ∠F measures 25°, what is the measure of its complementary angle?

Back

65°

Front

Are 30° and 60° angles complementary, supplementary, or neither?

Back

Complementary.

Front

Are 90° and 90° angles complementary, supplementary, or neither?

Back

Supplementary.