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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 605 · 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 140° more than the other. What is the bigger angle (in degrees)?
  2. 2.What is the supplement of 81° (in degrees)?
  3. 3.Are 55° and 35° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two straight lines cross each other. One of the angles formed is 57°. What is the angle vertically opposite to it (in degrees)?
  5. 5.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  6. 6.What is the supplement of 94° (in degrees)?
  7. 7.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the supplement of 84° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  10. 10.What is the supplement of 162° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 144°. What is the angle next to it on the same line (in degrees)?
  12. 12.What is the supplement of 102° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 35°. What is the angle next to it on the same line (in degrees)?
  15. 15.Are 69° and 73° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  16. 16.Are 17° and 163° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.What is the complement of 58° (in degrees)?
  18. 18.What is the complement of 42° (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 108°. What is the angle vertically opposite to it (in degrees)?
  20. 20.Are 11° and 169° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  21. 21.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the complement of 48° (in degrees)?
  23. 23.What is the complement of 46° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 84°. What is its corresponding angle (in degrees)?
  25. 25.What is the supplement of 95° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 85°. What is its corresponding angle (in degrees)?
  27. 27.What is the supplement of 78° (in degrees)?
  28. 28.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  29. 29.What is the supplement of 49° (in degrees)?
  30. 30.What is the complement of 23° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 148°. What is its corresponding angle (in degrees)?
  32. 32.What is the complement of 66° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 25°. What is the angle vertically opposite to it (in degrees)?
  34. 34.What is the complement of 28° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 96°. What is the angle next to it on the same line (in degrees)?
  36. 36.What is the complement of 13° (in degrees)?
  37. 37.What is the complement of 69° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 103°. What is its corresponding angle (in degrees)?
  39. 39.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the supplement of 8° (in degrees)?

Answer key

  1. 160
  2. 99
  3. Complementary
  4. 57
  5. 60
  6. 86
  7. 53
  8. 96
  9. 24
  10. 18
  11. 36
  12. 78
  13. 53
  14. 145
  15. Neither
  16. Supplementary
  17. 32
  18. 48
  19. 108
  20. Supplementary
  21. 80
  22. 42
  23. 44
  24. 84
  25. 85
  26. 85
  27. 102
  28. 92
  29. 131
  30. 67
  31. 148
  32. 24
  33. 25
  34. 62
  35. 84
  36. 77
  37. 21
  38. 103
  39. 77
  40. 172

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