Angle Pair Relationships

Front

What is a complementary angle?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

If one angle measures 32°, what is its complement?

Back

58°

Front

If ∠K and ∠S are complementary and ∠K = 58°, what is ∠S?

Back

32°

Front

If ∠H and ∠J are complementary and ∠H = 35°, what is ∠J?

Back

55°

Front

What is the formula to find the complement of an angle?

Back

Complement of angle A = 90° - A.

Front

Find the complement of 70°.

Back

20°

Front

If the measure of an angle is x, what is the measure of its complement?

Back

90° - x.

Front

What is the sum of two complementary angles?

Back

90 degrees.

Front

If ∠A = 45°, what is the measure of its complement?

Back

45°.

Front

If ∠B = 10°, what is the measure of its complement?

Back

80°.