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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 956 · 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 32° (in degrees)?
  2. 2.What is the complement of 41° (in degrees)?
  3. 3.What is the supplement of 65° (in degrees)?
  4. 4.Are 32° and 58° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  5. 5.What is the supplement of 89° (in degrees)?
  6. 6.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 17° and 130° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  9. 9.Are 52° and 141° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  10. 10.What is the supplement of 102° (in degrees)?
  11. 11.Are 28° and 62° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  12. 12.Two straight lines cross each other. One of the angles formed is 125°. What is the angle next to it on the same line (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 64°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Are 41° and 170° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 104°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 135°. What is the angle next to it on the same line (in degrees)?
  18. 18.What is the supplement of 50° (in degrees)?
  19. 19.What is the complement of 33° (in degrees)?
  20. 20.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 14° and 76° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.Are 42° and 138° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  23. 23.Two straight lines cross each other. One of the angles formed is 67°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its alternate interior angle (in degrees)?
  25. 25.What is the supplement of 94° (in degrees)?
  26. 26.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the supplement of 134° (in degrees)?
  28. 28.What is the complement of 20° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 57°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One angle is 130°. What is its corresponding angle (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 115°. What is the angle next to it on the same line (in degrees)?
  32. 32.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 75°. What is its alternate interior angle (in degrees)?
  34. 34.What is the complement of 83° (in degrees)?
  35. 35.What is the complement of 53° (in degrees)?
  36. 36.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the supplement of 158° (in degrees)?
  39. 39.What is the complement of 26° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 119°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 148
  2. 49
  3. 115
  4. Complementary
  5. 91
  6. 103
  7. Neither
  8. 93
  9. Neither
  10. 78
  11. Complementary
  12. 55
  13. 64
  14. Neither
  15. 50
  16. 104
  17. 45
  18. 130
  19. 57
  20. 55
  21. Complementary
  22. Supplementary
  23. 113
  24. 62
  25. 86
  26. 137
  27. 46
  28. 70
  29. 57
  30. 130
  31. 65
  32. 122
  33. 75
  34. 7
  35. 37
  36. 158
  37. 70
  38. 22
  39. 64
  40. 61

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