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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 902 · 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.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 107°. What is the angle next to it on the same line (in degrees)?
  3. 3.Are 49° and 131° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  4. 4.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two angles are supplementary. One is 76° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 22° (in degrees)?
  8. 8.What is the supplement of 60° (in degrees)?
  9. 9.What is the complement of 84° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 129°. What is its corresponding angle (in degrees)?
  11. 11.Are 38° and 142° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  12. 12.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the supplement of 29° (in degrees)?
  15. 15.What is the complement of 60° (in degrees)?
  16. 16.Are 12° and 168° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.What is the complement of 5° (in degrees)?
  18. 18.What is the complement of 50° (in degrees)?
  19. 19.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the complement of 22° (in degrees)?
  21. 21.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the supplement of 86° (in degrees)?
  23. 23.What is the supplement of 151° (in degrees)?
  24. 24.What is the complement of 14° (in degrees)?
  25. 25.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
  26. 26.Are 70° and 20° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  27. 27.What is the complement of 39° (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its other interior angle on the same side of the transversal (in degrees)?
  29. 29.Are 31° and 140° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Are 31° and 59° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  31. 31.What is the supplement of 13° (in degrees)?
  32. 32.Are 18° and 6° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  33. 33.Are 19° and 128° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  34. 34.What is the supplement of 110° (in degrees)?
  35. 35.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 62°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 65°. What is its alternate interior angle (in degrees)?
  39. 39.Are 21° and 159° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 95°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. 121
  2. 73
  3. Supplementary
  4. 142
  5. 128
  6. 120
  7. 158
  8. 120
  9. 6
  10. 129
  11. Supplementary
  12. 57
  13. 76
  14. 151
  15. 30
  16. Supplementary
  17. 85
  18. 40
  19. 101
  20. 68
  21. 66
  22. 94
  23. 29
  24. 76
  25. 126
  26. Complementary
  27. 51
  28. 91
  29. Neither
  30. Complementary
  31. 167
  32. Neither
  33. Neither
  34. 70
  35. 62
  36. 118
  37. 118
  38. 65
  39. Supplementary
  40. 85

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