Day 122 Complementary and Supplementary Angles

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

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

Front

If angle A is 30°, what is the measure of its complementary angle?

Back

60°

Front

If angle B is 150°, what is the measure of its supplementary angle?

Back

30°

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

If ∠C and ∠D are complementary and ∠C = 25°, what is ∠D?

Back

65°

Front

If ∠E and ∠F are supplementary and ∠E = 110°, what is ∠F?

Back

70°

Front

What is an example of a pair of complementary angles?

Back

45° and 45°.

Front

What is an example of a pair of supplementary angles?

Back

120° and 60°.