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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 824 · 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 24° and 156° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the supplement of 160° (in degrees)?
  4. 4.What is the complement of 6° (in degrees)?
  5. 5.Are 13° and 136° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  6. 6.What is the supplement of 51° (in degrees)?
  7. 7.Are 67° and 22° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.What is the supplement of 9° (in degrees)?
  9. 9.What is the complement of 62° (in degrees)?
  10. 10.Are 52° and 38° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 131°. What is its other interior angle on the same side of the transversal (in degrees)?
  12. 12.Two angles are complementary. One is 40° 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.Two straight lines cross each other. One of the angles formed is 95°. What is the angle vertically opposite to it (in degrees)?
  15. 15.What is the supplement of 69° (in degrees)?
  16. 16.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
  18. 18.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 62°. What is the angle vertically opposite to it (in degrees)?
  20. 20.What is the complement of 9° (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 149°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.What is the supplement of 12° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 67°. What is the angle next to it on the same line (in degrees)?
  24. 24.Are 37° and 53° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 88°. What is its alternate interior angle (in degrees)?
  26. 26.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the complement of 25° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 63°. What is the angle vertically opposite to it (in degrees)?
  29. 29.What is the supplement of 49° (in degrees)?
  30. 30.Are 79° and 101° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  31. 31.What is the complement of 60° (in degrees)?
  32. 32.What is the complement of 58° (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.Two angles are supplementary. One is 140° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 41°. What is the angle next to it on the same line (in degrees)?
  36. 36.Are 43° and 47° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  37. 37.Are 50° and 130° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  38. 38.What is the supplement of 123° (in degrees)?
  39. 39.What is the supplement of 143° (in degrees)?
  40. 40.What is the supplement of 118° (in degrees)?

Answer key

  1. Supplementary
  2. 75
  3. 20
  4. 84
  5. Neither
  6. 129
  7. Neither
  8. 171
  9. 28
  10. Complementary
  11. 49
  12. 65
  13. 76
  14. 95
  15. 111
  16. 61
  17. 86
  18. 54
  19. 62
  20. 81
  21. 31
  22. 168
  23. 113
  24. Complementary
  25. 88
  26. 49
  27. 65
  28. 63
  29. 131
  30. Supplementary
  31. 30
  32. 32
  33. 36
  34. 160
  35. 139
  36. Complementary
  37. Supplementary
  38. 57
  39. 37
  40. 62

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