Complementary, Supplementary, Adjacent, Vertical Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are adjacent angles?

Back

Two angles that share a common side and vertex.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

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

Back

60 degrees.

Front

If one angle measures 120 degrees, what is its supplementary angle?

Back

60 degrees.

Front

What is the measure of an angle that is complementary to a 45-degree angle?

Back

45 degrees.

Front

What is the measure of an angle that is supplementary to a 150-degree angle?

Back

30 degrees.

Front

If two angles are vertical angles, and one measures 70 degrees, what is the measure of the other angle?

Back

70 degrees.

Front

If two angles are adjacent and one measures 40 degrees, what is the maximum measure of the other angle?

Back

140 degrees.