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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 998 · 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 53° and 37° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  4. 4.What is the supplement of 97° (in degrees)?
  5. 5.Are 33° and 147° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  6. 6.Two straight lines cross each other. One of the angles formed is 84°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Are 23° and 157° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.Are 11° and 79° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  9. 9.Are 16° and 164° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  10. 10.Two parallel lines are cut by a transversal. One angle is 135°. What is its corresponding angle (in degrees)?
  11. 11.What is the supplement of 16° (in degrees)?
  12. 12.What is the complement of 19° (in degrees)?
  13. 13.What is the supplement of 25° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  15. 15.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the complement of 47° (in degrees)?
  17. 17.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the supplement of 106° (in degrees)?
  19. 19.What is the supplement of 47° (in degrees)?
  20. 20.What is the supplement of 151° (in degrees)?
  21. 21.What is the supplement of 163° (in degrees)?
  22. 22.What is the complement of 71° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 40°. What is its corresponding angle (in degrees)?
  24. 24.What is the complement of 23° (in degrees)?
  25. 25.Are 33° and 57° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  26. 26.Two straight lines cross each other. One of the angles formed is 141°. What is the angle next to it on the same line (in degrees)?
  27. 27.What is the complement of 21° (in degrees)?
  28. 28.Are 34° and 10° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  29. 29.What is the complement of 50° (in degrees)?
  30. 30.What is the supplement of 51° (in degrees)?
  31. 31.What is the complement of 84° (in degrees)?
  32. 32.Are 13° and 77° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  33. 33.Are 14° and 76° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 134°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.What is the supplement of 132° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 139°. What is its corresponding angle (in degrees)?
  37. 37.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  38. 38.Are 13° and 167° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  39. 39.What is the supplement of 70° (in degrees)?
  40. 40.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. Complementary
  2. 70
  3. 127
  4. 83
  5. Supplementary
  6. 84
  7. Supplementary
  8. Complementary
  9. Supplementary
  10. 135
  11. 164
  12. 71
  13. 155
  14. 52
  15. 126
  16. 43
  17. 73
  18. 74
  19. 133
  20. 29
  21. 17
  22. 19
  23. 40
  24. 67
  25. Complementary
  26. 39
  27. 69
  28. Neither
  29. 40
  30. 129
  31. 6
  32. Complementary
  33. Complementary
  34. 46
  35. 48
  36. 139
  37. 78
  38. Supplementary
  39. 110
  40. 60

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