Complementary, Supplementary, and Vertical Angles

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If one angle measures 70°, what is the measure of its complementary angle?

Back

20°.

Front

If one angle measures 110°, what is the measure of its supplementary angle?

Back

70°.

Front

What is the sum of two supplementary angles?

Back

180°.

Front

What is the sum of two complementary angles?

Back

90°.

Front

If two angles are vertical angles, what can we say about their measures?

Back

They are equal.

Front

Find the missing angle if one angle is 92° and they are supplementary.

Back

88°.

Front

Find the missing angle if one angle is 39° and they are complementary.

Back

51°.