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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 649 · 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 29° and 61° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.What is the supplement of 135° (in degrees)?
  3. 3.What is the complement of 5° (in degrees)?
  4. 4.What is the complement of 38° (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 81°. What is its corresponding angle (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 85°. What is its alternate interior angle (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 101°. What is its alternate interior angle (in degrees)?
  8. 8.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 31° (in degrees)?
  10. 10.Are 25° and 32° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  11. 11.Two straight lines cross each other. One of the angles formed is 110°. What is the angle next to it on the same line (in degrees)?
  12. 12.What is the supplement of 88° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 117°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Are 72° and 32° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  15. 15.What is the supplement of 46° (in degrees)?
  16. 16.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  17. 17.What is the complement of 62° (in degrees)?
  18. 18.Are 45° and 135° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 38° and 132° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  21. 21.What is the supplement of 23° (in degrees)?
  22. 22.What is the supplement of 57° (in degrees)?
  23. 23.What is the complement of 26° (in degrees)?
  24. 24.What is the complement of 6° (in degrees)?
  25. 25.What is the complement of 12° (in degrees)?
  26. 26.What is the supplement of 150° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 58°. What is its corresponding angle (in degrees)?
  28. 28.Are 43° and 137° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  29. 29.Are 71° and 19° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Two straight lines cross each other. One of the angles formed is 63°. What is the angle next to it on the same line (in degrees)?
  31. 31.What is the complement of 80° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 61°. What is its corresponding angle (in degrees)?
  33. 33.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  34. 34.Are 33° and 53° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  35. 35.What is the supplement of 90° (in degrees)?
  36. 36.What is the supplement of 175° (in degrees)?
  37. 37.What is the supplement of 108° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 84°. What is its corresponding angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the supplement of 132° (in degrees)?

Answer key

  1. Complementary
  2. 45
  3. 85
  4. 52
  5. 81
  6. 85
  7. 101
  8. 116
  9. 59
  10. Neither
  11. 70
  12. 92
  13. 117
  14. Neither
  15. 134
  16. 56
  17. 28
  18. Supplementary
  19. 58
  20. Neither
  21. 157
  22. 123
  23. 64
  24. 84
  25. 78
  26. 30
  27. 58
  28. Supplementary
  29. Complementary
  30. 117
  31. 10
  32. 61
  33. 114
  34. Neither
  35. 90
  36. 5
  37. 72
  38. 84
  39. 20
  40. 48

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