← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 5 · 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 straight lines cross each other. One of the angles formed is 133°. What is the angle next to it on the same line (in degrees)?
  2. 2.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the complement of 36° (in degrees)?
  4. 4.What is the complement of 45° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 45°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Are 58° and 104° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.What is the supplement of 43° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 92°. What is its corresponding angle (in degrees)?
  10. 10.What is the supplement of 138° (in degrees)?
  11. 11.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 12° (in degrees)?
  13. 13.What is the supplement of 96° (in degrees)?
  14. 14.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the complement of 22° (in degrees)?
  17. 17.What is the supplement of 57° (in degrees)?
  18. 18.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the complement of 10° (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 160°. What is the angle vertically opposite to it (in degrees)?
  22. 22.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the complement of 81° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 93°. What is its corresponding angle (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  26. 26.Are 19° and 126° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  27. 27.What is the supplement of 34° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 84°. What is the angle vertically opposite to it (in degrees)?
  29. 29.What is the complement of 32° (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One angle is 52°. What is its corresponding angle (in degrees)?
  31. 31.Are 11° and 79° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  32. 32.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  33. 33.Are 42° and 84° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its alternate interior angle (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its other interior angle on the same side of the transversal (in degrees)?
  37. 37.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 102°. What is its alternate interior angle (in degrees)?
  39. 39.What is the complement of 13° (in degrees)?
  40. 40.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 47
  2. 75
  3. 54
  4. 45
  5. 45
  6. Neither
  7. 121
  8. 137
  9. 92
  10. 42
  11. 60
  12. 78
  13. 84
  14. 54
  15. 51
  16. 68
  17. 123
  18. 118
  19. 130
  20. 80
  21. 160
  22. 56
  23. 9
  24. 93
  25. 136
  26. Neither
  27. 146
  28. 84
  29. 58
  30. 52
  31. Complementary
  32. 151
  33. Neither
  34. 78
  35. 34
  36. 141
  37. 64
  38. 102
  39. 77
  40. 76

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets