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Find complements and supplements

Year 11 maths · Fieldbook Learning

Name ______________________ Date __________

Complements add to 90°, supplements add to 180°.

  1. An angle measures 18°. What is the measure of its complement?
  2. An angle measures 56°. What is the measure of its complement?
  3. An angle measures 3°. What is the measure of its complement?
  4. An angle measures 43°. What is the measure of its complement?
  5. An angle measures 39°. What is the measure of its complement?
  6. An angle measures 68°. What is the measure of its supplement?
  7. An angle measures 173°. What is the measure of its supplement?
  8. An angle measures 118°. What is the measure of its supplement?
  9. An angle measures 166°. What is the measure of its supplement?
  10. An angle measures 116°. What is the measure of its supplement?
  11. An angle measures 88°. What is the measure of its complement?
  12. An angle measures 10°. What is the measure of its complement?
  13. An angle measures 45°. What is the measure of its complement?
  14. An angle measures 65°. What is the measure of its complement?
  15. An angle measures 27°. What is the measure of its complement?
  16. An angle measures 175°. What is the measure of its supplement?
  17. An angle measures 121°. What is the measure of its supplement?
  18. An angle measures 74°. What is the measure of its supplement?
  19. An angle measures 69°. What is the measure of its supplement?
  20. An angle measures 48°. What is the measure of its supplement?
More free practice: fieldbooklearning.com/uk/practice/year-11/complementary-and-supplementary-angles/

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Answer key: Find complements and supplements

  1. 72
  2. 34
  3. 87
  4. 47
  5. 51
  6. 112
  7. 7
  8. 62
  9. 14
  10. 64
  11. 2
  12. 80
  13. 45
  14. 25
  15. 63
  16. 5
  17. 59
  18. 106
  19. 111
  20. 132