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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 187 · 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 68° and 22° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.Are 28° and 62° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  3. 3.Two straight lines cross each other. One of the angles formed is 33°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the complement of 40° (in degrees)?
  5. 5.Are 67° and 23° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  6. 6.Are 26° and 157° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 116°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 131°. What is its corresponding angle (in degrees)?
  9. 9.What is the complement of 46° (in degrees)?
  10. 10.What is the complement of 48° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 74°. What is its corresponding angle (in degrees)?
  12. 12.What is the supplement of 21° (in degrees)?
  13. 13.Are 30° and 56° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  14. 14.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the complement of 51° (in degrees)?
  17. 17.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the supplement of 24° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One angle is 117°. What is its corresponding angle (in degrees)?
  20. 20.Are 22° and 6° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.What is the supplement of 85° (in degrees)?
  22. 22.What is the supplement of 58° (in degrees)?
  23. 23.Two angles are supplementary. One is 74° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  25. 25.What is the complement of 41° (in degrees)?
  26. 26.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  27. 27.Are 51° and 129° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  28. 28.Are 19° and 115° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  29. 29.What is the complement of 55° (in degrees)?
  30. 30.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  31. 31.Two straight lines cross each other. One of the angles formed is 133°. What is the angle vertically opposite to it (in degrees)?
  32. 32.What is the supplement of 8° (in degrees)?
  33. 33.Are 40° and 26° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.Are 60° and 30° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  35. 35.What is the complement of 53° (in degrees)?
  36. 36.What is the complement of 81° (in degrees)?
  37. 37.What is the complement of 57° (in degrees)?
  38. 38.Are 73° and 17° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  39. 39.What is the complement of 8° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 117°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. Complementary
  2. Complementary
  3. 147
  4. 50
  5. Complementary
  6. Neither
  7. 64
  8. 131
  9. 44
  10. 42
  11. 74
  12. 159
  13. Neither
  14. 147
  15. 95
  16. 39
  17. 67
  18. 156
  19. 117
  20. Neither
  21. 95
  22. 122
  23. 127
  24. 30
  25. 49
  26. 151
  27. Supplementary
  28. Neither
  29. 35
  30. Supplementary
  31. 133
  32. 172
  33. Neither
  34. Complementary
  35. 37
  36. 9
  37. 33
  38. Complementary
  39. 82
  40. 117

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