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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 579 · 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 complement of 57° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 100°. What is its corresponding angle (in degrees)?
  3. 3.What is the supplement of 25° (in degrees)?
  4. 4.Are 76° and 55° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  6. 6.Are 71° and 109° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  7. 7.Two parallel lines are cut by a transversal. One angle is 111°. What is its corresponding angle (in degrees)?
  8. 8.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  9. 9.Are 42° and 48° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  10. 10.What is the complement of 16° (in degrees)?
  11. 11.Are 64° and 26° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  12. 12.What is the supplement of 155° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 125°. What is its corresponding angle (in degrees)?
  14. 14.Are 35° and 108° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  15. 15.Two straight lines cross each other. One of the angles formed is 22°. What is the angle vertically opposite to it (in degrees)?
  16. 16.What is the complement of 51° (in degrees)?
  17. 17.What is the complement of 64° (in degrees)?
  18. 18.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the complement of 21° (in degrees)?
  21. 21.Are 49° and 131° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.What is the supplement of 63° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 68°. What is its corresponding angle (in degrees)?
  24. 24.Are 27° and 48° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 65°. What is its alternate interior angle (in degrees)?
  26. 26.What is the supplement of 150° (in degrees)?
  27. 27.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 48°. What is its corresponding angle (in degrees)?
  29. 29.What is the complement of 14° (in degrees)?
  30. 30.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 165° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 86°. What is its alternate interior angle (in degrees)?
  33. 33.What is the supplement of 56° (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Are 35° and 55° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the supplement of 43° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 146°. What is its corresponding angle (in degrees)?

Answer key

  1. 33
  2. 100
  3. 155
  4. Neither
  5. 51
  6. Supplementary
  7. 111
  8. 69
  9. Complementary
  10. 74
  11. Complementary
  12. 25
  13. 125
  14. Neither
  15. 22
  16. 39
  17. 26
  18. 149
  19. 99
  20. 69
  21. Supplementary
  22. 117
  23. 68
  24. Neither
  25. 65
  26. 30
  27. 74
  28. 48
  29. 76
  30. 77
  31. 15
  32. 86
  33. 124
  34. 34
  35. Complementary
  36. 24
  37. 142
  38. 72
  39. 137
  40. 146

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