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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 877 · 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 parallel lines are cut by a transversal. One angle is 114°. What is its corresponding angle (in degrees)?
  2. 2.What is the supplement of 7° (in degrees)?
  3. 3.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the complement of 60° (in degrees)?
  5. 5.What is the supplement of 77° (in degrees)?
  6. 6.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 62° and 164° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.Are 45° and 54° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  9. 9.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 18° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 51°. What is the angle vertically opposite to it (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its alternate interior angle (in degrees)?
  13. 13.What is the supplement of 28° (in degrees)?
  14. 14.Are 59° and 126° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.What is the supplement of 94° (in degrees)?
  16. 16.What is the complement of 59° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 40°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Are 68° and 112° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  19. 19.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 33° and 157° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  22. 22.Are 69° and 137° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  23. 23.What is the complement of 28° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 92°. What is its alternate interior angle (in degrees)?
  25. 25.Are 46° and 44° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  26. 26.What is the complement of 53° (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 137°. What is the angle next to it on the same line (in degrees)?
  28. 28.What is the supplement of 147° (in degrees)?
  29. 29.What is the supplement of 112° (in degrees)?
  30. 30.What is the complement of 42° (in degrees)?
  31. 31.Are 77° and 99° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  32. 32.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 35°. What is its corresponding angle (in degrees)?
  34. 34.What is the complement of 25° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 123°. What is its alternate interior angle (in degrees)?
  36. 36.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the supplement of 142° (in degrees)?
  39. 39.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)?
  40. 40.What is the complement of 79° (in degrees)?

Answer key

  1. 114
  2. 173
  3. 152
  4. 30
  5. 103
  6. 58
  7. Neither
  8. Neither
  9. 65
  10. 72
  11. 51
  12. 127
  13. 152
  14. Neither
  15. 86
  16. 31
  17. 40
  18. Supplementary
  19. 52
  20. Neither
  21. 73
  22. Neither
  23. 62
  24. 92
  25. Complementary
  26. 37
  27. 43
  28. 33
  29. 68
  30. 48
  31. Neither
  32. 157
  33. 35
  34. 65
  35. 123
  36. 151
  37. 54
  38. 38
  39. 132
  40. 11

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