Complement and Supplement Angles

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

What is an example of complementary angles?

Back

81° and 9° are complementary angles.

Front

What is an example of supplementary angles?

Back

110° and 70° are supplementary angles.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

If one angle is 30°, what is its complementary angle?

Back

The complementary angle is 60°.

Front

If one angle is 120°, what is its supplementary angle?

Back

The supplementary angle is 60°.

Front

What do you call angles that are next to each other and share a common side?

Back

Adjacent angles.

Front

What do you call angles that are formed when two lines intersect?

Back

Vertical angles.

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of their measures is 90 degrees.