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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 606 · 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 straight lines cross each other. One of the angles formed is 104°. What is the angle vertically opposite to it (in degrees)?
  2. 2.What is the complement of 85° (in degrees)?
  3. 3.Are 29° and 151° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.What is the supplement of 33° (in degrees)?
  5. 5.What is the supplement of 36° (in degrees)?
  6. 6.What is the complement of 9° (in degrees)?
  7. 7.Are 47° and 43° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  8. 8.Two angles are supplementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are supplementary. One is 120° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the supplement of 119° (in degrees)?
  11. 11.What is the complement of 45° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 75°. What is its corresponding angle (in degrees)?
  13. 13.What is the complement of 19° (in degrees)?
  14. 14.Are 35° and 150° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  15. 15.What is the supplement of 77° (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 124°. What is the angle next to it on the same line (in degrees)?
  17. 17.Are 30° and 150° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  18. 18.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 131°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  22. 22.Are 73° and 17° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  23. 23.What is the complement of 5° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 85°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Are 15° and 165° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  26. 26.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the supplement of 53° (in degrees)?
  28. 28.What is the complement of 25° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 134°. 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 116°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?
  32. 32.What is the complement of 63° (in degrees)?
  33. 33.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 127°. What is the angle next to it on the same line (in degrees)?
  35. 35.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  36. 36.What is the supplement of 73° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 65°. What is the angle vertically opposite to it (in degrees)?
  38. 38.What is the supplement of 89° (in degrees)?
  39. 39.What is the complement of 43° (in degrees)?
  40. 40.What is the complement of 27° (in degrees)?

Answer key

  1. 104
  2. 5
  3. Supplementary
  4. 147
  5. 144
  6. 81
  7. Complementary
  8. 117
  9. 150
  10. 61
  11. 45
  12. 75
  13. 71
  14. Neither
  15. 103
  16. 56
  17. Supplementary
  18. 141
  19. 49
  20. 49
  21. 53
  22. Complementary
  23. 85
  24. 85
  25. Supplementary
  26. 151
  27. 127
  28. 65
  29. 46
  30. 116
  31. 149
  32. 27
  33. 113
  34. 53
  35. 116
  36. 107
  37. 65
  38. 91
  39. 47
  40. 63

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