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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 109 · 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 67°. What is its corresponding angle (in degrees)?
  2. 2.What is the supplement of 77° (in degrees)?
  3. 3.What is the supplement of 46° (in degrees)?
  4. 4.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
  6. 6.What is the supplement of 158° (in degrees)?
  7. 7.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the supplement of 57° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its alternate interior angle (in degrees)?
  10. 10.Are 65° and 25° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  11. 11.Two angles are supplementary. One is 100° 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 122°. What is its alternate interior angle (in degrees)?
  13. 13.What is the supplement of 67° (in degrees)?
  14. 14.What is the complement of 30° (in degrees)?
  15. 15.Are 57° and 52° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  16. 16.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 147°. What is its corresponding angle (in degrees)?
  18. 18.What is the complement of 45° (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 92°. What is the angle next to it on the same line (in degrees)?
  20. 20.Are 26° and 20° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  21. 21.What is the complement of 9° (in degrees)?
  22. 22.Are 14° and 76° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  25. 25.What is the complement of 68° (in degrees)?
  26. 26.Are 21° and 159° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  27. 27.What is the supplement of 151° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 142°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Are 32° and 57° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  30. 30.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
  31. 31.What is the supplement of 19° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 100°. What is its corresponding angle (in degrees)?
  33. 33.What is the supplement of 161° (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 72°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.What is the complement of 44° (in degrees)?
  36. 36.What is the complement of 41° (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 114°. What is its alternate interior angle (in degrees)?
  38. 38.What is the complement of 18° (in degrees)?
  39. 39.What is the complement of 67° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 120°. What is its corresponding angle (in degrees)?

Answer key

  1. 67
  2. 103
  3. 134
  4. 116
  5. 49
  6. 22
  7. 48
  8. 123
  9. 89
  10. Complementary
  11. 140
  12. 122
  13. 113
  14. 60
  15. Neither
  16. 69
  17. 147
  18. 45
  19. 88
  20. Neither
  21. 81
  22. Complementary
  23. 135
  24. 114
  25. 22
  26. Supplementary
  27. 29
  28. 142
  29. Neither
  30. 37
  31. 161
  32. 100
  33. 19
  34. 108
  35. 46
  36. 49
  37. 114
  38. 72
  39. 23
  40. 120

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