Complementary angles are two angles whose measures add up to 90 degrees.
Let's check the combinations of the given angles to find the pair that adds up to 90°:
- A. 17° + 73° = 90° (This is complementary)
- B. 120° + 90° = 210° (Not complementary)
- C. 120° + 17° = 137° (Not complementary)
- D. 73° + 34° = 107° (Not complementary)
The correct answer is:
A. 17° and 73°