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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 940 · 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 23° and 67° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two parallel lines are cut by a transversal. One angle is 121°. What is its corresponding angle (in degrees)?
  3. 3.Are 12° and 168° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two straight lines cross each other. One of the angles formed is 119°. What is the angle vertically opposite to it (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 143°. What is its other interior angle on the same side of the transversal (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 82°. What is its corresponding angle (in degrees)?
  7. 7.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the complement of 48° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 87°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  12. 12.Are 28° and 167° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  13. 13.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two angles are complementary. One is 14° 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 160°. What is the angle vertically opposite to it (in degrees)?
  16. 16.What is the complement of 18° (in degrees)?
  17. 17.What is the supplement of 6° (in degrees)?
  18. 18.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the supplement of 171° (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One angle is 118°. What is its corresponding angle (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 114°. What is the angle next to it on the same line (in degrees)?
  22. 22.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the supplement of 170° (in degrees)?
  24. 24.What is the supplement of 7° (in degrees)?
  25. 25.What is the complement of 10° (in degrees)?
  26. 26.What is the supplement of 137° (in degrees)?
  27. 27.What is the supplement of 37° (in degrees)?
  28. 28.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  29. 29.What is the supplement of 52° (in degrees)?
  30. 30.What is the supplement of 85° (in degrees)?
  31. 31.Are 53° and 127° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  32. 32.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 89° (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  35. 35.Are 43° and 137° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.What is the supplement of 88° (in degrees)?
  37. 37.What is the complement of 38° (in degrees)?
  38. 38.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the supplement of 109° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 99°. What is its alternate interior angle (in degrees)?

Answer key

  1. Complementary
  2. 121
  3. Supplementary
  4. 119
  5. 37
  6. 82
  7. 101
  8. 42
  9. 87
  10. 126
  11. 122
  12. Neither
  13. 80
  14. 52
  15. 160
  16. 72
  17. 174
  18. 96
  19. 9
  20. 118
  21. 66
  22. 153
  23. 10
  24. 173
  25. 80
  26. 43
  27. 143
  28. 63
  29. 128
  30. 95
  31. Supplementary
  32. 95
  33. 91
  34. 49
  35. Supplementary
  36. 92
  37. 52
  38. 130
  39. 71
  40. 99

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