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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 318 · 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 36° and 93° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.What is the supplement of 40° (in degrees)?
  3. 3.What is the complement of 77° (in degrees)?
  4. 4.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are supplementary. One is 128° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 55° and 125° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  8. 8.Two angles are supplementary. One is 112° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  10. 10.Are 60° and 22° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  11. 11.What is the supplement of 98° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 107°. What is its other interior angle on the same side of the transversal (in degrees)?
  13. 13.What is the complement of 53° (in degrees)?
  14. 14.Are 39° and 156° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  15. 15.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 93°. What is its corresponding angle (in degrees)?
  17. 17.Are 67° and 23° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its alternate interior angle (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 55°. What is the angle vertically opposite to it (in degrees)?
  20. 20.What is the complement of 57° (in degrees)?
  21. 21.Are 32° and 58° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 32°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  25. 25.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 109° (in degrees)?
  27. 27.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 76° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One angle is 98°. What is its corresponding angle (in degrees)?
  30. 30.What is the complement of 71° (in degrees)?
  31. 31.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)?
  32. 32.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the complement of 78° (in degrees)?
  35. 35.What is the complement of 35° (in degrees)?
  36. 36.Are 63° and 44° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  37. 37.Two parallel lines are cut by a transversal. One angle is 66°. What is its corresponding angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.What is the supplement of 129° (in degrees)?
  40. 40.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. Neither
  2. 140
  3. 13
  4. 130
  5. 53
  6. 154
  7. Supplementary
  8. 146
  9. 75
  10. Neither
  11. 82
  12. 73
  13. 37
  14. Neither
  15. 52
  16. 93
  17. Complementary
  18. 61
  19. 55
  20. 33
  21. Complementary
  22. 105
  23. 148
  24. 60
  25. 61
  26. 71
  27. 64
  28. 104
  29. 98
  30. 19
  31. 46
  32. 103
  33. 68
  34. 12
  35. 55
  36. Neither
  37. 66
  38. 141
  39. 51
  40. 54

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