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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 862 · 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 complement of 29° (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 116°. What is the angle vertically opposite to it (in degrees)?
  3. 3.What is the complement of 30° (in degrees)?
  4. 4.What is the complement of 5° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 71°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 136°. What is the angle next to it on the same line (in degrees)?
  8. 8.What is the complement of 43° (in degrees)?
  9. 9.Are 19° and 86° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  10. 10.What is the supplement of 53° (in degrees)?
  11. 11.Two angles are supplementary. One is 126° 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 46°. What is the angle next to it on the same line (in degrees)?
  13. 13.Are 21° and 69° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  14. 14.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 47°. What is the angle next to it on the same line (in degrees)?
  16. 16.Are 32° and 15° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.Are 43° and 137° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.What is the supplement of 70° (in degrees)?
  19. 19.What is the complement of 69° (in degrees)?
  20. 20.What is the supplement of 102° (in degrees)?
  21. 21.Two angles are supplementary. One is 132° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the complement of 26° (in degrees)?
  23. 23.What is the supplement of 160° (in degrees)?
  24. 24.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)?
  25. 25.Two straight lines cross each other. One of the angles formed is 129°. What is the angle next to it on the same line (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 121°. What is its corresponding angle (in degrees)?
  27. 27.Are 29° and 105° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  28. 28.Are 26° and 154° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  30. 30.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 130°. What is the angle next to it on the same line (in degrees)?
  32. 32.Are 68° and 112° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  33. 33.What is the complement of 58° (in degrees)?
  34. 34.What is the complement of 67° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 58°. What is the angle next to it on the same line (in degrees)?
  37. 37.Are 14° and 166° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  38. 38.Two straight lines cross each other. One of the angles formed is 131°. What is the angle vertically opposite to it (in degrees)?
  39. 39.What is the supplement of 97° (in degrees)?
  40. 40.Are 62° and 117° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary

Answer key

  1. 61
  2. 116
  3. 60
  4. 85
  5. 71
  6. 65
  7. 44
  8. 47
  9. Neither
  10. 127
  11. 153
  12. 134
  13. Complementary
  14. 158
  15. 133
  16. Neither
  17. Supplementary
  18. 110
  19. 21
  20. 78
  21. 156
  22. 64
  23. 20
  24. 83
  25. 51
  26. 121
  27. Neither
  28. Supplementary
  29. 49
  30. 80
  31. 50
  32. Supplementary
  33. 32
  34. 23
  35. 53
  36. 122
  37. Supplementary
  38. 131
  39. 83
  40. Neither

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