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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 968 · 40 sums
TalentJR

The method (90, 180, equal): Complement of a = 90 − a. Supplement of a = 180 − a. Lines crossing: vertically opposite angles are equal; a linear pair adds up to 180°. Parallel lines: corresponding angles equal, alternate interior angles equal, interior angles on the same side add up to 180°. One angle d° more than the other: bigger = (total + d) ÷ 2.

NameDateTime takenScore ___ / 40
  1. 1.Are 67° and 23° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 36°. What is its alternate interior angle (in degrees)?
  4. 4.Two angles are supplementary. One is 108° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 30°. What is its corresponding angle (in degrees)?
  6. 6.Are 22° and 158° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  7. 7.What is the complement of 7° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 107°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two angles are supplementary. One is 74° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the supplement of 34° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 42°. What is its alternate interior angle (in degrees)?
  12. 12.What is the complement of 25° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 94°. What is its corresponding angle (in degrees)?
  14. 14.Two angles are supplementary. One is 98° more than the other. What is the bigger angle (in degrees)?
  15. 15.Are 45° and 45° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  16. 16.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two angles are supplementary. One is 116° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the complement of 27° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its alternate interior angle (in degrees)?
  20. 20.Are 53° and 127° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  21. 21.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 43°. What is the angle next to it on the same line (in degrees)?
  24. 24.What is the supplement of 122° (in degrees)?
  25. 25.Are 54° and 36° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  26. 26.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the complement of 11° (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 87°. What is its corresponding angle (in degrees)?
  29. 29.What is the complement of 72° (in degrees)?
  30. 30.Are 65° and 113° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.Two straight lines cross each other. One of the angles formed is 158°. What is the angle next to it on the same line (in degrees)?
  32. 32.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 98° (in degrees)?
  34. 34.Are 32° and 148° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  35. 35.What is the complement of 12° (in degrees)?
  36. 36.What is the supplement of 40° (in degrees)?
  37. 37.What is the complement of 66° (in degrees)?
  38. 38.What is the supplement of 76° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Are 61° and 119° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither

Answer key

  1. Complementary
  2. 69
  3. 36
  4. 144
  5. 30
  6. Supplementary
  7. 83
  8. 107
  9. 127
  10. 146
  11. 42
  12. 65
  13. 94
  14. 139
  15. Complementary
  16. 49
  17. 148
  18. 63
  19. 59
  20. Supplementary
  21. 75
  22. 61
  23. 137
  24. 58
  25. Complementary
  26. 63
  27. 79
  28. 87
  29. 18
  30. Neither
  31. 22
  32. 54
  33. 82
  34. Supplementary
  35. 78
  36. 140
  37. 24
  38. 104
  39. 43
  40. Supplementary

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