Special Angle Relationships

Front

What is a straight angle?

Back

An angle that measures 180 degrees.

Front

What are complementary angles?

Back

Two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles whose measures add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

What are adjacent angles?

Back

Two angles that share a common side and a common vertex.

Front

Find the complement of a 32-degree angle.

Back

58 degrees.

Front

Find the supplement of a 104-degree angle.

Back

76 degrees.

Front

If two angles are supplementary, what is their sum?

Back

180 degrees.

Front

If two angles are complementary, what is their sum?

Back

90 degrees.

Front

What is the measure of a right angle?

Back

90 degrees.