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Find reference angles

Grade 12 math · Fieldbook Learning

Name ______________________ Date __________

The reference angle is the acute angle to the x-axis.

  1. What is the reference angle for 351°?
  2. What is the reference angle for 291°?
  3. What is the reference angle for 129°?
  4. What is the reference angle for 93°?
  5. What is the reference angle for 159°?
  6. What is the reference angle for 348°?
  7. What is the reference angle for 288°?
  8. What is the reference angle for 332°?
  9. What is the reference angle for 177°?
  10. What is the reference angle for 223°?
  11. What is the reference angle for 202°?
  12. What is the reference angle for 280°?
  13. What is the reference angle for 191°?
  14. What is the reference angle for 299°?
  15. What is the reference angle for 200°?
  16. What is the reference angle for 258°?
  17. What is the reference angle for 108°?
  18. What is the reference angle for 231°?
  19. What is the reference angle for 278°?
  20. What is the reference angle for 256°?
More free practice: fieldbooklearning.com/ca/practice/grade-12/reference-angles/

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Answer key: Find reference angles

  1. 9
  2. 69
  3. 51
  4. 87
  5. 21
  6. 12
  7. 72
  8. 28
  9. 3
  10. 43
  11. 22
  12. 80
  13. 11
  14. 61
  15. 20
  16. 78
  17. 72
  18. 51
  19. 82
  20. 76