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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 129 · 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.What is the supplement of 96° (in degrees)?
  2. 2.What is the complement of 6° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 94°. What is its corresponding angle (in degrees)?
  4. 4.What is the supplement of 97° (in degrees)?
  5. 5.What is the complement of 45° (in degrees)?
  6. 6.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 67° and 23° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 112°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 44°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Are 66° and 24° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Are 56° and 34° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  13. 13.Are 14° and 166° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  14. 14.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 147°. What is its corresponding angle (in degrees)?
  16. 16.Are 43° and 137° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  17. 17.What is the complement of 53° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 62°. What is the angle next to it on the same line (in degrees)?
  19. 19.What is the complement of 20° (in degrees)?
  20. 20.What is the supplement of 70° (in degrees)?
  21. 21.What is the complement of 16° (in degrees)?
  22. 22.Are 34° and 56° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  23. 23.Two straight lines cross each other. One of the angles formed is 124°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 75° and 93° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 54°. What is its other interior angle on the same side of the transversal (in degrees)?
  26. 26.Are 67° and 60° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  27. 27.What is the complement of 84° (in degrees)?
  28. 28.What is the complement of 43° (in degrees)?
  29. 29.What is the supplement of 134° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 42°. What is the angle next to it on the same line (in degrees)?
  31. 31.Are 66° and 114° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  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 39°. What is its corresponding angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 148°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Two angles are supplementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 120°. What is its alternate interior angle (in degrees)?
  37. 37.Are 42° and 138° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  38. 38.What is the complement of 79° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 147°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 26°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 84
  2. 84
  3. 94
  4. 83
  5. 45
  6. 137
  7. Complementary
  8. 68
  9. 127
  10. 44
  11. Complementary
  12. Complementary
  13. Supplementary
  14. 100
  15. 147
  16. Supplementary
  17. 37
  18. 118
  19. 70
  20. 110
  21. 74
  22. Complementary
  23. 124
  24. Neither
  25. 126
  26. Neither
  27. 6
  28. 47
  29. 46
  30. 138
  31. Supplementary
  32. 157
  33. 39
  34. 148
  35. 98
  36. 120
  37. Supplementary
  38. 11
  39. 33
  40. 154

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