← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 567 · 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.Two parallel lines are cut by a transversal. One interior angle is 120°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 136°. What is its corresponding angle (in degrees)?
  3. 3.What is the supplement of 105° (in degrees)?
  4. 4.Are 70° and 127° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  5. 5.What is the supplement of 85° (in degrees)?
  6. 6.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two angles are supplementary. One is 128° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 136°. What is the angle next to it on the same line (in degrees)?
  9. 9.Are 42° and 48° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.What is the complement of 22° (in degrees)?
  12. 12.What is the complement of 16° (in degrees)?
  13. 13.Are 38° and 73° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.What is the supplement of 127° (in degrees)?
  16. 16.What is the complement of 45° (in degrees)?
  17. 17.What is the complement of 57° (in degrees)?
  18. 18.What is the supplement of 40° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One angle is 99°. What is its corresponding angle (in degrees)?
  20. 20.Are 12° and 168° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  21. 21.What is the complement of 40° (in degrees)?
  22. 22.What is the supplement of 116° (in degrees)?
  23. 23.What is the complement of 31° (in degrees)?
  24. 24.What is the supplement of 92° (in degrees)?
  25. 25.What is the complement of 27° (in degrees)?
  26. 26.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the complement of 84° (in degrees)?
  28. 28.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  29. 29.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)?
  30. 30.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 48° (in degrees)?
  32. 32.Are 12° and 78° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  33. 33.What is the supplement of 128° (in degrees)?
  34. 34.What is the complement of 32° (in degrees)?
  35. 35.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 40°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 60°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.What is the supplement of 149° (in degrees)?
  40. 40.Two angles are supplementary. One is 98° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 60
  2. 136
  3. 75
  4. Neither
  5. 95
  6. 51
  7. 154
  8. 44
  9. Complementary
  10. 98
  11. 68
  12. 74
  13. Neither
  14. 59
  15. 53
  16. 45
  17. 33
  18. 140
  19. 99
  20. Supplementary
  21. 50
  22. 64
  23. 59
  24. 88
  25. 63
  26. 158
  27. 6
  28. 59
  29. 109
  30. 72
  31. 132
  32. Complementary
  33. 52
  34. 58
  35. 53
  36. 40
  37. 120
  38. 132
  39. 31
  40. 139

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