SWD - Angle Relationships

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.

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees.

Front

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

Back

90 degrees.

Front

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

Back

180 degrees.

Front

Find x if angle 1 = 70 degrees and angle 2 is complementary to angle 1.

Back

x = 20 degrees.

Front

Find x if angle 1 = 110 degrees and angle 2 is supplementary to angle 1.

Back

x = 70 degrees.

Front

If two angles are complementary and one angle measures 25 degrees, what is the measure of the other angle?

Back

65 degrees.

Front

If two angles are supplementary and one angle measures 175 degrees, what is the measure of the other angle?

Back

5 degrees.