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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 875 · 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.Two parallel lines are cut by a transversal. One angle is 130°. What is its corresponding angle (in degrees)?
  2. 2.Are 67° and 113° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  3. 3.What is the supplement of 151° (in degrees)?
  4. 4.What is the complement of 44° (in degrees)?
  5. 5.What is the supplement of 81° (in degrees)?
  6. 6.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 70°. What is its alternate interior angle (in degrees)?
  8. 8.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  9. 9.Are 56° and 37° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  10. 10.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
  12. 12.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the supplement of 26° (in degrees)?
  15. 15.Two angles are supplementary. One is 86° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  17. 17.What is the supplement of 87° (in degrees)?
  18. 18.Are 44° and 46° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  19. 19.Two straight lines cross each other. One of the angles formed is 29°. What is the angle next to it on the same line (in degrees)?
  20. 20.Are 37° and 143° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  21. 21.Two parallel lines are cut by a transversal. One angle is 34°. What is its corresponding angle (in degrees)?
  22. 22.What is the complement of 82° (in degrees)?
  23. 23.What is the supplement of 59° (in degrees)?
  24. 24.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 102°. What is the angle vertically opposite to it (in degrees)?
  26. 26.What is the complement of 22° (in degrees)?
  27. 27.What is the supplement of 164° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 156°. What is the angle vertically opposite to it (in degrees)?
  29. 29.What is the complement of 68° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 45°. What is the angle next to it on the same line (in degrees)?
  31. 31.What is the supplement of 103° (in degrees)?
  32. 32.What is the complement of 19° (in degrees)?
  33. 33.Are 70° and 20° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  34. 34.Are 42° and 48° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  35. 35.Are 42° and 72° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  36. 36.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)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its other interior angle on the same side of the transversal (in degrees)?
  38. 38.What is the supplement of 62° (in degrees)?
  39. 39.What is the supplement of 135° (in degrees)?
  40. 40.What is the supplement of 122° (in degrees)?

Answer key

  1. 130
  2. Supplementary
  3. 29
  4. 46
  5. 99
  6. 137
  7. 70
  8. 47
  9. Neither
  10. 142
  11. 114
  12. 56
  13. 79
  14. 154
  15. 133
  16. 48
  17. 93
  18. Complementary
  19. 151
  20. Supplementary
  21. 34
  22. 8
  23. 121
  24. 53
  25. 102
  26. 68
  27. 16
  28. 156
  29. 22
  30. 135
  31. 77
  32. 71
  33. Complementary
  34. Complementary
  35. Neither
  36. 61
  37. 134
  38. 118
  39. 45
  40. 58

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