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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 11 · 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 56° and 124° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its other interior angle on the same side of the transversal (in degrees)?
  3. 3.What is the complement of 10° (in degrees)?
  4. 4.Are 26° and 112° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  5. 5.What is the supplement of 120° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  7. 7.Are 35° and 96° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.Two straight lines cross each other. One of the angles formed is 98°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 101°. What is its other interior angle on the same side of the transversal (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 60°. What is the angle next to it on the same line (in degrees)?
  11. 11.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  12. 12.Are 32° and 38° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  13. 13.Two straight lines cross each other. One of the angles formed is 124°. What is the angle next to it on the same line (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 38°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Are 20° and 98° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.Are 37° and 35° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.What is the supplement of 13° (in degrees)?
  18. 18.What is the complement of 19° (in degrees)?
  19. 19.Are 43° and 47° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  20. 20.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the complement of 15° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 87°. What is its corresponding angle (in degrees)?
  23. 23.What is the complement of 67° (in degrees)?
  24. 24.What is the complement of 66° (in degrees)?
  25. 25.Are 74° and 106° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  26. 26.What is the complement of 14° (in degrees)?
  27. 27.What is the supplement of 60° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 140°. 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 144°. What is the angle next to it on the same line (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 38°. What is the angle next to it on the same line (in degrees)?
  31. 31.What is the supplement of 168° (in degrees)?
  32. 32.What is the complement of 28° (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 115°. What is its corresponding angle (in degrees)?
  34. 34.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  35. 35.Are 39° and 51° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  36. 36.Two straight lines cross each other. One of the angles formed is 108°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the supplement of 25° (in degrees)?
  38. 38.Are 31° and 8° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  39. 39.Are 80° and 28° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.What is the supplement of 95° (in degrees)?

Answer key

  1. Supplementary
  2. 91
  3. 80
  4. Neither
  5. 60
  6. 49
  7. Neither
  8. 98
  9. 79
  10. 120
  11. 158
  12. Neither
  13. 56
  14. 142
  15. Neither
  16. Neither
  17. 167
  18. 71
  19. Complementary
  20. 69
  21. 75
  22. 87
  23. 23
  24. 24
  25. Supplementary
  26. 76
  27. 120
  28. 40
  29. 36
  30. 142
  31. 12
  32. 62
  33. 115
  34. 67
  35. Complementary
  36. 108
  37. 155
  38. Neither
  39. Neither
  40. 85

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