7.2 - 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 degrees, what is the measure of its complementary angle?

Back

60 degrees (90 - 30 = 60).

Front

If angle B is 110 degrees, what is the measure of its supplementary angle?

Back

70 degrees (180 - 110 = 70).

Front

What is the measure of the missing angle if one angle is 47 degrees and they are complementary?

Back

43 degrees (90 - 47 = 43).

Front

If two angles are supplementary and one angle measures 90 degrees, what is the measure of the other angle?

Back

90 degrees (180 - 90 = 90).

Front

Would angles measuring 45 degrees and 45 degrees be complementary, supplementary, or neither?

Back

Complementary (45 + 45 = 90).

Front

Would angles measuring 120 degrees and 60 degrees be complementary, supplementary, or neither?

Back

Supplementary (120 + 60 = 180).

Front

If angle C is 72 degrees, what is the measure of its complementary angle?

Back

18 degrees (90 - 72 = 18).

Front

If angle D is 150 degrees, what is the measure of its supplementary angle?

Back

30 degrees (180 - 150 = 30).