← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 791 · 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.Are 46° and 135° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two straight lines cross each other. One of the angles formed is 113°. What is the angle vertically opposite to it (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 147°. What is its corresponding angle (in degrees)?
  4. 4.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  6. 6.What is the supplement of 132° (in degrees)?
  7. 7.What is the complement of 66° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  9. 9.What is the supplement of 128° (in degrees)?
  10. 10.What is the supplement of 118° (in degrees)?
  11. 11.What is the supplement of 26° (in degrees)?
  12. 12.Are 74° and 25° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 105°. What is its alternate interior angle (in degrees)?
  14. 14.Are 65° and 25° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  15. 15.Two straight lines cross each other. One of the angles formed is 152°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 112°. What is the angle vertically opposite to it (in degrees)?
  17. 17.What is the supplement of 45° (in degrees)?
  18. 18.What is the complement of 62° (in degrees)?
  19. 19.Are 28° and 129° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  20. 20.What is the complement of 40° (in degrees)?
  21. 21.Are 67° and 23° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  22. 22.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the supplement of 123° (in degrees)?
  25. 25.What is the complement of 10° (in degrees)?
  26. 26.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)?
  27. 27.Two angles are supplementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  28. 28.Are 11° and 148° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  29. 29.Are 33° and 57° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  30. 30.What is the complement of 23° (in degrees)?
  31. 31.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  32. 32.What is the complement of 68° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 150°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 124°. What is its corresponding angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 122°. What is its alternate interior angle (in degrees)?
  36. 36.What is the complement of 85° (in degrees)?
  37. 37.Are 79° and 101° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  38. 38.Two straight lines cross each other. One of the angles formed is 84°. What is the angle vertically opposite to it (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 124°. What is the angle next to it on the same line (in degrees)?
  40. 40.Are 18° and 42° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. Neither
  2. 113
  3. 147
  4. 66
  5. 86
  6. 48
  7. 24
  8. 60
  9. 52
  10. 62
  11. 154
  12. Neither
  13. 105
  14. Complementary
  15. 152
  16. 112
  17. 135
  18. 28
  19. Neither
  20. 50
  21. Complementary
  22. 99
  23. 104
  24. 57
  25. 80
  26. 143
  27. 117
  28. Neither
  29. Complementary
  30. 67
  31. 65
  32. 22
  33. 150
  34. 124
  35. 122
  36. 5
  37. Supplementary
  38. 84
  39. 56
  40. Neither

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