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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 589 · 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 78° and 12° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.Two straight lines cross each other. One of the angles formed is 105°. What is the angle vertically opposite to it (in degrees)?
  3. 3.Two angles are supplementary. One is 78° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the supplement of 13° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its other interior angle on the same side of the transversal (in degrees)?
  7. 7.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the supplement of 105° (in degrees)?
  10. 10.Are 63° and 125° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  11. 11.What is the supplement of 18° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 38°. 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 47°. What is the angle vertically opposite to it (in degrees)?
  14. 14.What is the supplement of 77° (in degrees)?
  15. 15.What is the complement of 73° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 72°. What is its corresponding angle (in degrees)?
  17. 17.What is the supplement of 107° (in degrees)?
  18. 18.Are 36° and 54° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  19. 19.Two straight lines cross each other. One of the angles formed is 116°. What is the angle vertically opposite to it (in degrees)?
  20. 20.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 151°. What is the angle vertically opposite to it (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its alternate interior angle (in degrees)?
  23. 23.Are 71° and 19° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 135°. What is its other interior angle on the same side of the transversal (in degrees)?
  25. 25.What is the complement of 14° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 126°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 48°. What is the angle next to it on the same line (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 53°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 68°. What is the angle next to it on the same line (in degrees)?
  32. 32.What is the complement of 48° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 133°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  35. 35.What is the complement of 28° (in degrees)?
  36. 36.What is the supplement of 141° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 79°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  40. 40.Are 41° and 49° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. Complementary
  2. 105
  3. 129
  4. 103
  5. 167
  6. 50
  7. 58
  8. 69
  9. 75
  10. Neither
  11. 162
  12. 142
  13. 47
  14. 103
  15. 17
  16. 72
  17. 73
  18. Complementary
  19. 116
  20. 77
  21. 151
  22. 76
  23. Complementary
  24. 45
  25. 76
  26. 126
  27. 132
  28. 114
  29. 75
  30. 53
  31. 112
  32. 42
  33. 47
  34. 30
  35. 62
  36. 39
  37. 101
  38. 60
  39. 96
  40. Complementary

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