Warm-Up_Complementary and Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

If one angle measures 35°, what is the measure of its complementary angle?

Back

55°

Front

If one angle measures 119°, what is the measure of its supplementary angle?

Back

61°

Front

What is the sum of the measures of complementary angles?

Back

90 degrees.

Front

What is the sum of the measures of supplementary angles?

Back

180 degrees.

Front

Give an example of complementary angles.

Back

45° and 45°.

Front

Give an example of supplementary angles.

Back

120° and 60°.

Front

If ∠A and ∠B are complementary and ∠A = 29°, what is ∠B?

Back

61°.

Front

If ∠C and ∠D are supplementary and ∠C = 90°, what is ∠D?

Back

90°.