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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 611 · 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 angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  2. 2.What is the supplement of 164° (in degrees)?
  3. 3.What is the supplement of 50° (in degrees)?
  4. 4.Are 52° and 111° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.Two straight lines cross each other. One of the angles formed is 131°. What is the angle vertically opposite to it (in degrees)?
  6. 6.What is the supplement of 138° (in degrees)?
  7. 7.What is the complement of 26° (in degrees)?
  8. 8.What is the supplement of 32° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 50°. What is the angle vertically opposite to it (in degrees)?
  10. 10.What is the supplement of 18° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its alternate interior angle (in degrees)?
  12. 12.Are 28° and 62° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  13. 13.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the complement of 5° (in degrees)?
  15. 15.What is the complement of 61° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 57°. What is its corresponding angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 111°. What is its corresponding angle (in degrees)?
  18. 18.What is the supplement of 107° (in degrees)?
  19. 19.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 38°. What is its alternate interior angle (in degrees)?
  21. 21.What is the complement of 49° (in degrees)?
  22. 22.What is the supplement of 167° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its alternate interior angle (in degrees)?
  24. 24.Are 48° and 119° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  25. 25.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 83°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  28. 28.Are 47° and 104° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  29. 29.Are 68° and 22° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  30. 30.What is the supplement of 40° (in degrees)?
  31. 31.What is the complement of 25° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 87°. What is the angle vertically opposite to it (in degrees)?
  33. 33.What is the complement of 8° (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 139°. What is its corresponding angle (in degrees)?
  35. 35.Are 59° and 31° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  36. 36.Are 16° and 164° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  37. 37.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the supplement of 91° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 98°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 63°. What is its corresponding angle (in degrees)?

Answer key

  1. 79
  2. 16
  3. 130
  4. Neither
  5. 131
  6. 42
  7. 64
  8. 148
  9. 50
  10. 162
  11. 93
  12. Complementary
  13. 65
  14. 85
  15. 29
  16. 57
  17. 111
  18. 73
  19. 80
  20. 38
  21. 41
  22. 13
  23. 58
  24. Neither
  25. 61
  26. 83
  27. 49
  28. Neither
  29. Complementary
  30. 140
  31. 65
  32. 87
  33. 82
  34. 139
  35. Complementary
  36. Supplementary
  37. 132
  38. 89
  39. 82
  40. 63

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