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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 777 · 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 angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  2. 2.What is the complement of 66° (in degrees)?
  3. 3.What is the complement of 68° (in degrees)?
  4. 4.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two angles are supplementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 11° (in degrees)?
  8. 8.What is the complement of 37° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 55°. What is the angle next to it on the same line (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 117°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.Are 76° and 104° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  12. 12.Are 33° and 57° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  13. 13.Are 21° and 119° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  14. 14.Two straight lines cross each other. One of the angles formed is 144°. What is the angle vertically opposite to it (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 93°. What is the angle next to it on the same line (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 83°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.What is the supplement of 116° (in degrees)?
  18. 18.What is the complement of 67° (in degrees)?
  19. 19.What is the complement of 83° (in degrees)?
  20. 20.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the supplement of 33° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 148°. What is its corresponding angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 128°. What is the angle next to it on the same line (in degrees)?
  24. 24.What is the supplement of 134° (in degrees)?
  25. 25.What is the complement of 21° (in degrees)?
  26. 26.What is the supplement of 32° (in degrees)?
  27. 27.What is the complement of 71° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 67°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 42°. What is its alternate interior angle (in degrees)?
  30. 30.What is the supplement of 67° (in degrees)?
  31. 31.What is the supplement of 18° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 82°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are supplementary. One is 98° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the complement of 16° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 84°. What is its other interior angle on the same side of the transversal (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 122°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  38. 38.Are 40° and 50° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  39. 39.What is the complement of 32° (in degrees)?
  40. 40.Are 14° and 11° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary

Answer key

  1. 75
  2. 24
  3. 22
  4. 138
  5. 94
  6. 113
  7. 169
  8. 53
  9. 125
  10. 63
  11. Supplementary
  12. Complementary
  13. Neither
  14. 144
  15. 87
  16. 97
  17. 64
  18. 23
  19. 7
  20. 74
  21. 147
  22. 148
  23. 52
  24. 46
  25. 69
  26. 148
  27. 19
  28. 67
  29. 42
  30. 113
  31. 162
  32. 82
  33. 139
  34. 74
  35. 96
  36. 122
  37. 54
  38. Complementary
  39. 58
  40. Neither

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