7.2 - Complementary and Supplementary Angles

Front

What are supplementary angles?

Back

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

Front

What are complementary angles?

Back

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

Front

If one angle measures 70 degrees, what is the measure of its supplementary angle?

Back

110 degrees (180 - 70 = 110).

Front

If one angle measures 30 degrees, what is the measure of its complementary angle?

Back

60 degrees (90 - 30 = 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 angle A is 45 degrees, what is the measure of angle B if they are supplementary?

Back

135 degrees (180 - 45 = 135).

Front

If angle C is 25 degrees, what is the measure of angle D if they are complementary?

Back

65 degrees (90 - 25 = 65).

Front

Are two angles measuring 90 degrees each complementary, supplementary, or neither?

Back

Supplementary (90 + 90 = 180).

Front

If angle E is 60 degrees, what is the measure of angle F if they are supplementary?

Back

120 degrees (180 - 60 = 120).