Complementary and Supplementary Vertical and Adjacent Angles

Front

What are complementary angles?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

What are supplementary angles?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal; they are formed by two intersecting lines.

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

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

Back

The complement is 60 degrees, since 90 - 30 = 60.

Front

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

Back

The supplement is 60 degrees, since 180 - 120 = 60.

Front

How do you find the supplement of an angle?

Back

To find the supplement of an angle, subtract the angle from 180 degrees.

Front

How do you find the complement of an angle?

Back

To find the complement of an angle, subtract the angle from 90 degrees.

Front

What is the sum of two complementary angles?

Back

The sum of two complementary angles is 90 degrees.

Front

What is the sum of two supplementary angles?

Back

The sum of two supplementary angles is 180 degrees.