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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 450 · 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 6° (in degrees)?
  2. 2.What is the complement of 48° (in degrees)?
  3. 3.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 32° and 58° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  6. 6.What is the supplement of 67° (in degrees)?
  7. 7.What is the complement of 49° (in degrees)?
  8. 8.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 35° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its alternate interior angle (in degrees)?
  12. 12.What is the supplement of 96° (in degrees)?
  13. 13.Are 43° and 77° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.What is the supplement of 60° (in degrees)?
  15. 15.Are 68° and 112° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  16. 16.What is the complement of 23° (in degrees)?
  17. 17.What is the supplement of 107° (in degrees)?
  18. 18.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the complement of 82° (in degrees)?
  20. 20.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the supplement of 158° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 79°. What is its corresponding angle (in degrees)?
  23. 23.What is the supplement of 134° (in degrees)?
  24. 24.What is the complement of 77° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 53°. What is the angle next to it on the same line (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 54°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 142°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 107°. What is the angle next to it on the same line (in degrees)?
  30. 30.What is the supplement of 33° (in degrees)?
  31. 31.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 95°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 107°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 130°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the supplement of 132° (in degrees)?
  38. 38.What is the complement of 43° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its alternate interior angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 132°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. 84
  2. 42
  3. 51
  4. 47
  5. Complementary
  6. 113
  7. 41
  8. 132
  9. 55
  10. 24
  11. 109
  12. 84
  13. Neither
  14. 120
  15. Supplementary
  16. 67
  17. 73
  18. 61
  19. 8
  20. 78
  21. 22
  22. 79
  23. 46
  24. 13
  25. 127
  26. 54
  27. 138
  28. 142
  29. 73
  30. 147
  31. 77
  32. 85
  33. 73
  34. 30
  35. 130
  36. 30
  37. 48
  38. 47
  39. 58
  40. 48

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