← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 626 · 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 72° and 18° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  2. 2.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?
  3. 3.What is the supplement of 167° (in degrees)?
  4. 4.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 20° and 43° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  6. 6.Two straight lines cross each other. One of the angles formed is 61°. What is the angle vertically opposite to it (in degrees)?
  7. 7.What is the complement of 60° (in degrees)?
  8. 8.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 156°. What is the angle vertically opposite to it (in degrees)?
  11. 11.What is the supplement of 19° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 153°. What is the angle next to it on the same line (in degrees)?
  13. 13.Are 37° and 53° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  14. 14.What is the complement of 50° (in degrees)?
  15. 15.Are 10° and 53° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  16. 16.Two straight lines cross each other. One of the angles formed is 74°. What is the angle next to it on the same line (in degrees)?
  17. 17.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  18. 18.Are 79° and 21° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 104°. What is its alternate interior angle (in degrees)?
  20. 20.What is the supplement of 109° (in degrees)?
  21. 21.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the complement of 41° (in degrees)?
  23. 23.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the complement of 30° (in degrees)?
  25. 25.Two angles are complementary. One is 38° 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 47°. What is the angle next to it on the same line (in degrees)?
  27. 27.Are 11° and 79° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  28. 28.What is the supplement of 127° (in degrees)?
  29. 29.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  30. 30.Are 23° and 157° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  31. 31.Are 31° and 59° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  32. 32.What is the supplement of 172° (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  34. 34.Are 70° and 34° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  35. 35.What is the complement of 22° (in degrees)?
  36. 36.Are 72° and 108° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  37. 37.Two straight lines cross each other. One of the angles formed is 75°. What is the angle vertically opposite to it (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 35°. What is its corresponding angle (in degrees)?
  39. 39.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 28°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. Complementary
  2. 20
  3. 13
  4. 136
  5. Neither
  6. 61
  7. 30
  8. 51
  9. 142
  10. 156
  11. 161
  12. 27
  13. Complementary
  14. 40
  15. Neither
  16. 106
  17. 66
  18. Neither
  19. 104
  20. 71
  21. 68
  22. 49
  23. 52
  24. 60
  25. 64
  26. 133
  27. Complementary
  28. 53
  29. 124
  30. Supplementary
  31. Complementary
  32. 8
  33. 36
  34. Neither
  35. 68
  36. Supplementary
  37. 75
  38. 35
  39. 79
  40. 28

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