← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 66 · 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 76° (in degrees)?
  2. 2.What is the complement of 48° (in degrees)?
  3. 3.Are 33° and 49° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two straight lines cross each other. One of the angles formed is 68°. What is the angle vertically opposite to it (in degrees)?
  5. 5.What is the supplement of 122° (in degrees)?
  6. 6.What is the complement of 82° (in degrees)?
  7. 7.What is the supplement of 6° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 90°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 50°. What is the angle next to it on the same line (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 102°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 129°. What is its other interior angle on the same side of the transversal (in degrees)?
  12. 12.What is the supplement of 173° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 47°. 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 84°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 150°. What is its corresponding angle (in degrees)?
  16. 16.What is the complement of 41° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its alternate interior angle (in degrees)?
  18. 18.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the complement of 67° (in degrees)?
  20. 20.What is the complement of 5° (in degrees)?
  21. 21.What is the complement of 46° (in degrees)?
  22. 22.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the supplement of 107° (in degrees)?
  25. 25.What is the complement of 28° (in degrees)?
  26. 26.What is the complement of 75° (in degrees)?
  27. 27.What is the complement of 72° (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 60°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Are 20° and 70° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.What is the complement of 37° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 130°. 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 53°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 24°. What is the angle next to it on the same line (in degrees)?
  35. 35.What is the supplement of 79° (in degrees)?
  36. 36.What is the supplement of 108° (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 33°. What is its corresponding angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 47°. What is its alternate interior angle (in degrees)?
  39. 39.Two angles are supplementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the complement of 61° (in degrees)?

Answer key

  1. 14
  2. 42
  3. Neither
  4. 68
  5. 58
  6. 8
  7. 174
  8. 90
  9. 130
  10. 102
  11. 51
  12. 7
  13. 133
  14. 96
  15. 150
  16. 49
  17. 140
  18. 54
  19. 23
  20. 85
  21. 44
  22. 124
  23. 55
  24. 73
  25. 62
  26. 15
  27. 18
  28. 142
  29. 60
  30. Complementary
  31. 53
  32. 50
  33. 127
  34. 156
  35. 101
  36. 72
  37. 33
  38. 47
  39. 94
  40. 29

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