← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 328 · 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 42° and 48° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.What is the supplement of 150° (in degrees)?
  3. 3.Are 73° and 107° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  4. 4.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  6. 6.What is the complement of 13° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
  8. 8.What is the supplement of 58° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 103°. What is the angle next to it on the same line (in degrees)?
  10. 10.Are 33° and 57° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  11. 11.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 145°. What is the angle next to it on the same line (in degrees)?
  13. 13.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 145°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 133°. What is its alternate interior angle (in degrees)?
  17. 17.What is the complement of 79° (in degrees)?
  18. 18.Two angles are supplementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 71°. What is the angle vertically opposite to it (in degrees)?
  20. 20.Are 57° and 123° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.Two parallel lines are cut by a transversal. One angle is 48°. What is its corresponding angle (in degrees)?
  22. 22.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 98°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.What is the complement of 60° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One angle is 136°. What is its corresponding angle (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 101°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.What is the complement of 21° (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 55°. What is its corresponding angle (in degrees)?
  29. 29.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 70°. What is its alternate interior angle (in degrees)?
  31. 31.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 150°. What is its corresponding angle (in degrees)?
  33. 33.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.What is the complement of 17° (in degrees)?
  36. 36.Are 79° and 101° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  37. 37.What is the supplement of 23° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 50°. What is its alternate interior angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. Complementary
  2. 30
  3. Supplementary
  4. 74
  5. 141
  6. 77
  7. 136
  8. 122
  9. 77
  10. Complementary
  11. 51
  12. 35
  13. 60
  14. 20
  15. 145
  16. 133
  17. 11
  18. 125
  19. 71
  20. Supplementary
  21. 48
  22. 56
  23. 82
  24. 30
  25. 136
  26. 79
  27. 69
  28. 55
  29. 61
  30. 70
  31. 65
  32. 150
  33. 50
  34. 33
  35. 73
  36. Supplementary
  37. 157
  38. 50
  39. 123
  40. 105

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