← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 72 · 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 11° (in degrees)?
  2. 2.What is the complement of 14° (in degrees)?
  3. 3.What is the supplement of 38° (in degrees)?
  4. 4.Are 11° and 79° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  5. 5.What is the complement of 53° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  7. 7.What is the supplement of 63° (in degrees)?
  8. 8.What is the supplement of 9° (in degrees)?
  9. 9.What is the supplement of 174° (in degrees)?
  10. 10.What is the complement of 82° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 144°. What is the angle next to it on the same line (in degrees)?
  12. 12.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its alternate interior angle (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 79°. What is the angle vertically opposite to it (in degrees)?
  16. 16.What is the supplement of 47° (in degrees)?
  17. 17.What is the complement of 21° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  19. 19.What is the supplement of 40° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 71°. What is the angle next to it on the same line (in degrees)?
  21. 21.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  22. 22.Are 60° and 93° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 157°. What is the angle next to it on the same line (in degrees)?
  25. 25.What is the complement of 28° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 132°. What is the angle vertically opposite to it (in degrees)?
  27. 27.What is the supplement of 68° (in degrees)?
  28. 28.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)?
  29. 29.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?
  30. 30.What is the supplement of 54° (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 158°. What is the angle vertically opposite to it (in degrees)?
  32. 32.Are 23° and 67° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.Two straight lines cross each other. One of the angles formed is 143°. What is the angle next to it on the same line (in degrees)?
  34. 34.What is the supplement of 51° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 142°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 113°. What is the angle vertically opposite to it (in degrees)?
  38. 38.What is the complement of 70° (in degrees)?
  39. 39.Are 37° and 155° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  40. 40.What is the complement of 80° (in degrees)?

Answer key

  1. 169
  2. 76
  3. 142
  4. Complementary
  5. 37
  6. 123
  7. 117
  8. 171
  9. 6
  10. 8
  11. 36
  12. 105
  13. 78
  14. 34
  15. 79
  16. 133
  17. 69
  18. 75
  19. 140
  20. 109
  21. 102
  22. Neither
  23. 104
  24. 23
  25. 62
  26. 132
  27. 112
  28. 89
  29. 44
  30. 126
  31. 158
  32. Complementary
  33. 37
  34. 129
  35. 142
  36. 111
  37. 113
  38. 20
  39. Neither
  40. 10

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