← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 645 · 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 18° and 162° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.What is the supplement of 109° (in degrees)?
  3. 3.What is the supplement of 99° (in degrees)?
  4. 4.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 25° and 155° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  6. 6.Are 62° and 35° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  7. 7.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 80°. What is its corresponding angle (in degrees)?
  11. 11.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 41° (in degrees)?
  13. 13.What is the supplement of 87° (in degrees)?
  14. 14.Are 14° and 108° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  15. 15.What is the supplement of 115° (in degrees)?
  16. 16.What is the supplement of 113° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  18. 18.Are 69° and 107° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  19. 19.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 47° and 43° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  21. 21.Two parallel lines are cut by a transversal. One angle is 108°. What is its corresponding angle (in degrees)?
  22. 22.Are 23° and 67° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  23. 23.Two straight lines cross each other. One of the angles formed is 146°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 78° and 60° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  25. 25.Are 79° and 11° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  26. 26.What is the supplement of 8° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its alternate interior angle (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 57°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the complement of 21° (in degrees)?
  31. 31.What is the supplement of 101° (in degrees)?
  32. 32.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
  33. 33.Are 56° and 124° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  34. 34.What is the complement of 77° (in degrees)?
  35. 35.What is the supplement of 172° (in degrees)?
  36. 36.Are 48° and 150° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  37. 37.What is the supplement of 38° (in degrees)?
  38. 38.What is the supplement of 161° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 140°. What is its corresponding angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 99°. What is its alternate interior angle (in degrees)?

Answer key

  1. Supplementary
  2. 71
  3. 81
  4. 63
  5. Supplementary
  6. Neither
  7. 114
  8. 65
  9. 70
  10. 80
  11. 73
  12. 49
  13. 93
  14. Neither
  15. 65
  16. 67
  17. 86
  18. Neither
  19. 76
  20. Complementary
  21. 108
  22. Complementary
  23. 146
  24. Neither
  25. Complementary
  26. 172
  27. 121
  28. 57
  29. 56
  30. 69
  31. 79
  32. 147
  33. Supplementary
  34. 13
  35. 8
  36. Neither
  37. 142
  38. 19
  39. 140
  40. 99

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