Complementary and Supplementary Angles

Front

Complementary angles are angles that together equal

Back

90 degrees.

Front

Find the missing angle if one angle is 35 degrees.

Back

55 degrees (because 90 - 35 = 55).

Front

Find the missing angle if one angle is 72 degrees.

Back

18 degrees (because 90 - 72 = 18).

Front

These angles are...

Back

Complementary.

Front

Find the missing angle if one angle is 40 degrees.

Back

50 degrees (because 90 - 40 = 50).

Front

What is the sum of two complementary angles?

Back

90 degrees.

Front

If two angles are complementary, what is the relationship between them?

Back

Their measures add up to 90 degrees.

Front

Find the missing angle if one angle is 25 degrees.

Back

65 degrees (because 90 - 25 = 65).

Front

What are supplementary angles?

Back

Angles that add up to 180 degrees.

Front

Find the missing angle if one angle is 130 degrees.

Back

50 degrees (because 180 - 130 = 50).