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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 853 · 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.What is the supplement of 82° (in degrees)?
  2. 2.Are 32° and 95° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  3. 3.Two straight lines cross each other. One of the angles formed is 146°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the complement of 22° (in degrees)?
  5. 5.What is the supplement of 39° (in degrees)?
  6. 6.What is the supplement of 69° (in degrees)?
  7. 7.Are 27° and 63° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  8. 8.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  11. 11.Are 49° and 67° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  12. 12.Two parallel lines are cut by a transversal. One angle is 55°. What is its corresponding angle (in degrees)?
  13. 13.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the supplement of 38° (in degrees)?
  15. 15.Two angles are complementary. One is 38° 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 76°. What is the angle next to it on the same line (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 111°. What is the angle next to it on the same line (in degrees)?
  18. 18.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the complement of 14° (in degrees)?
  21. 21.What is the supplement of 56° (in degrees)?
  22. 22.What is the supplement of 32° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 67°. What is its corresponding angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One angle is 73°. What is its corresponding angle (in degrees)?
  26. 26.What is the complement of 30° (in degrees)?
  27. 27.What is the complement of 48° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 57°. What is the angle next to it on the same line (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 160°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its other interior angle on the same side of the transversal (in degrees)?
  31. 31.What is the complement of 54° (in degrees)?
  32. 32.What is the complement of 5° (in degrees)?
  33. 33.What is the complement of 8° (in degrees)?
  34. 34.Are 23° and 57° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  35. 35.What is the supplement of 128° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  38. 38.Are 62° and 139° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  39. 39.Two straight lines cross each other. One of the angles formed is 121°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 98
  2. Neither
  3. 34
  4. 68
  5. 141
  6. 111
  7. Complementary
  8. 41
  9. 53
  10. 102
  11. Neither
  12. 55
  13. 79
  14. 142
  15. 64
  16. 104
  17. 69
  18. 101
  19. 72
  20. 76
  21. 124
  22. 148
  23. 67
  24. 30
  25. 73
  26. 60
  27. 42
  28. 123
  29. 160
  30. 71
  31. 36
  32. 85
  33. 82
  34. Neither
  35. 52
  36. 24
  37. 59
  38. Neither
  39. 121
  40. 149

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