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 a common vertex.

Front

What is an example of complementary angles?

Back

81° and 9°.

Front

If one angle is 60°, what is the measure of its complementary angle?

Back

30°.

Front

If two angles are supplementary and one measures 110°, what is the measure of the other angle?

Back

70°.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

If angle A is 45°, what is the measure of angle B if they are complementary?

Back

45°.

Front

What is the sum of the measures of two complementary angles?

Back

90 degrees.

Front

What is the sum of the measures of two supplementary angles?

Back

180 degrees.