Complementary and Supplementary Angles

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 type of angle is less than 90 degrees?

Back

Acute angle.

Front

What type of angle is exactly 90 degrees?

Back

Right angle.

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

Obtuse angle.

Front

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

Back

60 degrees.

Front

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

Back

60 degrees.

Front

What is the measure of a right angle?

Back

90 degrees.

Front

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

Back

50 degrees.

Front

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

Back

70 degrees.