Angle Relationships

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

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

Back

110 degrees.

Front

If one angle measures 20 degrees, what is the measure of its complementary angle?

Back

70 degrees.

Front

What is the measure of angle x if it is supplementary to a 43 degree angle?

Back

137 degrees.

Front

What is the measure of angle x if it is complementary to a 63 degree angle?

Back

27 degrees.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

If angle 1 is 50 degrees and angle 2 is adjacent to it, what is the measure of angle 2 if they are supplementary?

Back

130 degrees.

Front

If angle 1 is 90 degrees, what type of angle is angle 2 if it is complementary to angle 1?

Back

Angle 2 is also 90 degrees.

Front

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

Back

90 degrees.