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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 952 · 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 supplement of 86° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 85°. What is its corresponding angle (in degrees)?
  3. 3.What is the supplement of 85° (in degrees)?
  4. 4.Are 41° and 161° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 45°. What is its corresponding angle (in degrees)?
  7. 7.What is the complement of 16° (in degrees)?
  8. 8.Are 12° and 78° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  9. 9.Two straight lines cross each other. One of the angles formed is 148°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 107°. What is its alternate interior angle (in degrees)?
  11. 11.What is the supplement of 62° (in degrees)?
  12. 12.What is the supplement of 124° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 33°. What is its corresponding angle (in degrees)?
  14. 14.What is the supplement of 150° (in degrees)?
  15. 15.What is the supplement of 93° (in degrees)?
  16. 16.Are 30° and 11° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the complement of 27° (in degrees)?
  19. 19.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 67° and 113° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  22. 22.Are 11° and 127° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  23. 23.What is the supplement of 35° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 101°. What is the angle next to it on the same line (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the complement of 20° (in degrees)?
  27. 27.What is the complement of 68° (in degrees)?
  28. 28.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  29. 29.What is the complement of 64° (in degrees)?
  30. 30.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 13° (in degrees)?
  32. 32.Are 29° and 61° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.Are 64° and 26° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  35. 35.What is the supplement of 153° (in degrees)?
  36. 36.What is the supplement of 28° (in degrees)?
  37. 37.What is the complement of 17° (in degrees)?
  38. 38.What is the complement of 35° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 23°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Are 53° and 19° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither

Answer key

  1. 94
  2. 85
  3. 95
  4. Neither
  5. 36
  6. 45
  7. 74
  8. Complementary
  9. 148
  10. 107
  11. 118
  12. 56
  13. 33
  14. 30
  15. 87
  16. Neither
  17. 124
  18. 63
  19. 92
  20. 159
  21. Supplementary
  22. Neither
  23. 145
  24. 79
  25. 136
  26. 70
  27. 22
  28. 71
  29. 26
  30. 58
  31. 167
  32. Complementary
  33. Complementary
  34. Supplementary
  35. 27
  36. 152
  37. 73
  38. 55
  39. 23
  40. Neither

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