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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 179 · 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 16° and 46° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two straight lines cross each other. One of the angles formed is 56°. What is the angle next to it on the same line (in degrees)?
  3. 3.What is the complement of 59° (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 57°. What is the angle next to it on the same line (in degrees)?
  5. 5.What is the complement of 65° (in degrees)?
  6. 6.What is the supplement of 37° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 137°. What is the angle next to it on the same line (in degrees)?
  8. 8.What is the supplement of 142° (in degrees)?
  9. 9.What is the supplement of 156° (in degrees)?
  10. 10.What is the supplement of 26° (in degrees)?
  11. 11.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the supplement of 104° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 114°. What is the angle next to it on the same line (in degrees)?
  14. 14.Are 42° and 48° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  15. 15.Are 75° and 24° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  16. 16.Two straight lines cross each other. One of the angles formed is 96°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Are 58° and 32° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  18. 18.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  19. 19.Are 79° and 101° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 99°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.What is the complement of 21° (in degrees)?
  22. 22.Are 41° and 139° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  23. 23.Are 40° and 140° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 35°. What is its alternate interior angle (in degrees)?
  25. 25.What is the supplement of 42° (in degrees)?
  26. 26.Are 65° and 115° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  27. 27.What is the supplement of 53° (in degrees)?
  28. 28.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  29. 29.Are 37° and 119° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  30. 30.Are 47° and 152° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 134°. What is its other interior angle on the same side of the transversal (in degrees)?
  32. 32.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 113° (in degrees)?
  34. 34.What is the complement of 26° (in degrees)?
  35. 35.What is the complement of 19° (in degrees)?
  36. 36.What is the supplement of 116° (in degrees)?
  37. 37.What is the supplement of 5° (in degrees)?
  38. 38.What is the complement of 62° (in degrees)?
  39. 39.What is the complement of 52° (in degrees)?
  40. 40.What is the supplement of 154° (in degrees)?

Answer key

  1. Neither
  2. 124
  3. 31
  4. 123
  5. 25
  6. 143
  7. 43
  8. 38
  9. 24
  10. 154
  11. 53
  12. 76
  13. 66
  14. Complementary
  15. Neither
  16. 96
  17. Complementary
  18. 151
  19. Supplementary
  20. 81
  21. 69
  22. Supplementary
  23. Supplementary
  24. 35
  25. 138
  26. Supplementary
  27. 127
  28. 136
  29. Neither
  30. Neither
  31. 46
  32. 69
  33. 67
  34. 64
  35. 71
  36. 64
  37. 175
  38. 28
  39. 38
  40. 26

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