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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 818 · 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 27° and 153° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.What is the complement of 60° (in degrees)?
  3. 3.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 23° and 108° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  6. 6.What is the complement of 72° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the supplement of 83° (in degrees)?
  12. 12.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 112°. What is its corresponding angle (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 58°. What is the angle next to it on the same line (in degrees)?
  15. 15.What is the supplement of 99° (in degrees)?
  16. 16.What is the complement of 24° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 114°. What is its other interior angle on the same side of the transversal (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 53°. What is its other interior angle on the same side of the transversal (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 84°. What is the angle next to it on the same line (in degrees)?
  20. 20.Are 46° and 44° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.Two straight lines cross each other. One of the angles formed is 59°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the supplement of 11° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its alternate interior angle (in degrees)?
  24. 24.What is the supplement of 126° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 88°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the supplement of 60° (in degrees)?
  27. 27.What is the supplement of 136° (in degrees)?
  28. 28.Are 20° and 82° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  29. 29.What is the complement of 84° (in degrees)?
  30. 30.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the complement of 74° (in degrees)?
  32. 32.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)?
  33. 33.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the complement of 85° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 154°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Are 38° and 142° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  37. 37.What is the supplement of 76° (in degrees)?
  38. 38.Are 13° and 48° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  39. 39.What is the complement of 78° (in degrees)?
  40. 40.What is the supplement of 82° (in degrees)?

Answer key

  1. Supplementary
  2. 30
  3. 113
  4. 74
  5. Neither
  6. 18
  7. 44
  8. 52
  9. 47
  10. 79
  11. 97
  12. 52
  13. 112
  14. 122
  15. 81
  16. 66
  17. 66
  18. 127
  19. 96
  20. Complementary
  21. 121
  22. 169
  23. 140
  24. 54
  25. 92
  26. 120
  27. 44
  28. Neither
  29. 6
  30. 71
  31. 16
  32. 125
  33. 73
  34. 5
  35. 154
  36. Supplementary
  37. 104
  38. Neither
  39. 12
  40. 98

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