Complementary and Supplementary 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 is the measure of a straight line?

Back

180 degrees.

Front

If one angle measures 30°, what is the measure of its complementary angle?

Back

60°.

Front

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

Back

70°.

Front

Are two angles that measure 45° and 45° complementary, supplementary, or neither?

Back

Complementary.

Front

Are two angles that measure 90° and 90° complementary, supplementary, or neither?

Back

Supplementary.

Front

What is the sum of the measures of complementary angles?

Back

90°.

Front

What is the sum of the measures of supplementary angles?

Back

180°.

Front

If two angles are complementary, and one angle measures 40°, what is the measure of the other angle?

Back

50°.