← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 571 · 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 supplement of 47° (in degrees)?
  2. 2.What is the complement of 28° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 37°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the complement of 10° (in degrees)?
  5. 5.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  6. 6.What is the complement of 78° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 63°. What is its corresponding angle (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 92°. What is the angle vertically opposite to it (in degrees)?
  10. 10.What is the supplement of 57° (in degrees)?
  11. 11.What is the supplement of 43° (in degrees)?
  12. 12.What is the complement of 63° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 91°. What is its other interior angle on the same side of the transversal (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.What is the complement of 76° (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 86°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Are 35° and 145° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.What is the complement of 27° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One angle is 61°. What is its corresponding angle (in degrees)?
  20. 20.What is the complement of 84° (in degrees)?
  21. 21.What is the complement of 54° (in degrees)?
  22. 22.What is the complement of 83° (in degrees)?
  23. 23.What is the supplement of 119° (in degrees)?
  24. 24.What is the supplement of 39° (in degrees)?
  25. 25.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 39°. What is the angle vertically opposite to it (in degrees)?
  27. 27.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)?
  28. 28.What is the supplement of 13° (in degrees)?
  29. 29.Two angles are supplementary. One is 128° more than the other. What is the bigger angle (in degrees)?
  30. 30.Are 34° and 5° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  31. 31.What is the supplement of 91° (in degrees)?
  32. 32.Are 52° and 38° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  33. 33.What is the supplement of 162° (in degrees)?
  34. 34.What is the complement of 13° (in degrees)?
  35. 35.What is the complement of 22° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 139°. What is its other interior angle on the same side of the transversal (in degrees)?
  38. 38.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the complement of 81° (in degrees)?
  40. 40.What is the supplement of 137° (in degrees)?

Answer key

  1. 133
  2. 62
  3. 143
  4. 80
  5. 72
  6. 12
  7. 30
  8. 63
  9. 92
  10. 123
  11. 137
  12. 27
  13. 89
  14. 146
  15. 14
  16. 86
  17. Supplementary
  18. 63
  19. 61
  20. 6
  21. 36
  22. 7
  23. 61
  24. 141
  25. 113
  26. 39
  27. 142
  28. 167
  29. 154
  30. Neither
  31. 89
  32. Complementary
  33. 18
  34. 77
  35. 68
  36. 136
  37. 41
  38. 47
  39. 9
  40. 43

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