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Complementary angles

Year 7 maths · Fieldbook Learning

Name ______________________ Date __________

Complementary angles add up to 90 degrees.

  1. Two angles are complementary. One angle is 28°. How many degrees is the other angle?
  2. Two angles are complementary. One angle is 64°. How many degrees is the other angle?
  3. Two angles are complementary. One angle is 48°. How many degrees is the other angle?
  4. Two angles are complementary. One angle is 74°. How many degrees is the other angle?
  5. Two angles are complementary. One angle is 52°. How many degrees is the other angle?
  6. Two angles are complementary. One angle is 65°. How many degrees is the other angle?
  7. Two angles are complementary. One angle is 10°. How many degrees is the other angle?
  8. Two angles are complementary. One angle is 36°. How many degrees is the other angle?
  9. Two angles are complementary. One angle is 15°. How many degrees is the other angle?
  10. Two angles are complementary. One angle is 17°. How many degrees is the other angle?
  11. Two angles are complementary. One angle is 41.5°. How many degrees is the other angle?
  12. Two angles are complementary. One angle is 45°. How many degrees is the other angle?
  13. Two angles are complementary. One angle is 27.5°. How many degrees is the other angle?
  14. Two angles are complementary. One angle is 83°. How many degrees is the other angle?
  15. Two angles are complementary. One angle is 26.5°. How many degrees is the other angle?
  16. Two angles are complementary. One angle is 42°. How many degrees is the other angle?
  17. Two angles are complementary. One angle is 8.5°. How many degrees is the other angle?
  18. Two angles are complementary. One angle is 18°. How many degrees is the other angle?
  19. Two angles are complementary. One angle is 67.5°. How many degrees is the other angle?
  20. Two angles are complementary. One angle is 60.5°. How many degrees is the other angle?
More free practice: fieldbooklearning.com/au/practice/year-7/complementary-angles/

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Answer key: Complementary angles

  1. 62
  2. 26
  3. 42
  4. 16
  5. 38
  6. 25
  7. 80
  8. 54
  9. 75
  10. 73
  11. 48.5
  12. 45
  13. 62.5
  14. 7
  15. 63.5
  16. 48
  17. 81.5
  18. 72
  19. 22.5
  20. 29.5