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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 753 · 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 2° more than the other. What is the bigger angle (in degrees)?
  2. 2.Are 16° and 113° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.What is the complement of 53° (in degrees)?
  4. 4.Are 46° and 44° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.What is the supplement of 144° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?
  7. 7.What is the supplement of 61° (in degrees)?
  8. 8.What is the supplement of 104° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 48°. What is its corresponding angle (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 115°. What is its other interior angle on the same side of the transversal (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 40°. What is its corresponding angle (in degrees)?
  14. 14.What is the supplement of 78° (in degrees)?
  15. 15.What is the complement of 58° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its alternate interior angle (in degrees)?
  17. 17.Are 62° and 118° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  18. 18.What is the complement of 28° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 139°. What is its alternate interior angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 68°. What is the angle vertically opposite to it (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 82°. What is the angle next to it on the same line (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 92°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.Are 17° and 155° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  25. 25.Are 53° and 37° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  26. 26.What is the supplement of 15° (in degrees)?
  27. 27.Are 17° and 73° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  28. 28.What is the complement of 21° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Are 57° and 123° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  31. 31.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  32. 32.Are 73° and 17° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  33. 33.Are 53° and 127° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.What is the complement of 17° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 69°. What is the angle next to it on the same line (in degrees)?
  36. 36.What is the supplement of 48° (in degrees)?
  37. 37.What is the complement of 59° (in degrees)?
  38. 38.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the supplement of 75° (in degrees)?
  40. 40.What is the supplement of 168° (in degrees)?

Answer key

  1. 46
  2. Neither
  3. 37
  4. Complementary
  5. 36
  6. 44
  7. 119
  8. 76
  9. 48
  10. 33
  11. 74
  12. 65
  13. 40
  14. 102
  15. 32
  16. 127
  17. Supplementary
  18. 62
  19. 139
  20. 116
  21. 68
  22. 98
  23. 88
  24. Neither
  25. Complementary
  26. 165
  27. Complementary
  28. 69
  29. 36
  30. Supplementary
  31. 120
  32. Complementary
  33. Supplementary
  34. 73
  35. 111
  36. 132
  37. 31
  38. 65
  39. 105
  40. 12

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