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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 3 · 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 75° and 166° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 104° (in degrees)?
  5. 5.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the complement of 41° (in degrees)?
  8. 8.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 92°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Are 30° and 150° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  11. 11.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 137°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 7° (in degrees)?
  14. 14.What is the supplement of 18° (in degrees)?
  15. 15.Two angles are supplementary. One is 82° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 55°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  18. 18.What is the supplement of 53° (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 37°. What is the angle vertically opposite to it (in degrees)?
  20. 20.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)?
  21. 21.Two straight lines cross each other. One of the angles formed is 81°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the supplement of 76° (in degrees)?
  23. 23.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  24. 24.Are 22° and 7° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  25. 25.Are 19° and 161° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.Are 22° and 73° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  27. 27.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
  28. 28.Are 30° and 114° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  29. 29.Are 14° and 76° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  30. 30.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 109° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its other interior angle on the same side of the transversal (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.What is the complement of 52° (in degrees)?
  35. 35.Two angles are supplementary. One is 74° more than the other. What is the bigger angle (in degrees)?
  36. 36.Are 79° and 101° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  37. 37.Two straight lines cross each other. One of the angles formed is 97°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 120°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 55°. What is its corresponding angle (in degrees)?

Answer key

  1. Neither
  2. 51
  3. 72
  4. 76
  5. 126
  6. 47
  7. 49
  8. 50
  9. 92
  10. Supplementary
  11. 112
  12. 137
  13. 83
  14. 162
  15. 131
  16. 55
  17. 52
  18. 127
  19. 37
  20. 22
  21. 99
  22. 104
  23. 66
  24. Neither
  25. Supplementary
  26. Neither
  27. 37
  28. Neither
  29. Complementary
  30. 78
  31. 71
  32. 87
  33. 122
  34. 38
  35. 127
  36. Supplementary
  37. 83
  38. 65
  39. 60
  40. 55

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