← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 601 · 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 complement of 25° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its alternate interior angle (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its other interior angle on the same side of the transversal (in degrees)?
  4. 4.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 97°. What is its corresponding angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 30°. What is the angle next to it on the same line (in degrees)?
  8. 8.What is the supplement of 13° (in degrees)?
  9. 9.What is the complement of 13° (in degrees)?
  10. 10.What is the complement of 19° (in degrees)?
  11. 11.Are 35° and 162° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  12. 12.What is the supplement of 54° (in degrees)?
  13. 13.What is the supplement of 130° (in degrees)?
  14. 14.What is the supplement of 42° (in degrees)?
  15. 15.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  16. 16.Are 12° and 78° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  17. 17.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  18. 18.Are 72° and 108° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  19. 19.What is the supplement of 112° (in degrees)?
  20. 20.What is the complement of 67° (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 67°. What is its corresponding angle (in degrees)?
  22. 22.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 147°. What is its corresponding angle (in degrees)?
  24. 24.What is the complement of 74° (in degrees)?
  25. 25.What is the complement of 77° (in degrees)?
  26. 26.What is the complement of 11° (in degrees)?
  27. 27.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 21° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 83°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.What is the complement of 49° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 131°. What is its corresponding angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 134°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the complement of 56° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 37°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  38. 38.Are 58° and 122° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  39. 39.Are 37° and 31° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.What is the complement of 58° (in degrees)?

Answer key

  1. 65
  2. 46
  3. 104
  4. 50
  5. 36
  6. 97
  7. 150
  8. 167
  9. 77
  10. 71
  11. Neither
  12. 126
  13. 50
  14. 138
  15. 54
  16. Complementary
  17. 113
  18. Supplementary
  19. 68
  20. 23
  21. 67
  22. 138
  23. 147
  24. 16
  25. 13
  26. 79
  27. 52
  28. 159
  29. 97
  30. 41
  31. 131
  32. 152
  33. 46
  34. 65
  35. 34
  36. 37
  37. 74
  38. Supplementary
  39. Neither
  40. 32

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