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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 486 · 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 19° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its other interior angle on the same side of the transversal (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 95°. What is its alternate interior angle (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 139°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  6. 6.What is the complement of 50° (in degrees)?
  7. 7.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 34° (in degrees)?
  10. 10.What is the complement of 15° (in degrees)?
  11. 11.What is the complement of 6° (in degrees)?
  12. 12.What is the supplement of 139° (in degrees)?
  13. 13.What is the supplement of 37° (in degrees)?
  14. 14.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the supplement of 160° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.Are 77° and 103° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  18. 18.Two parallel lines are cut by a transversal. One angle is 30°. What is its corresponding angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 111°. What is its alternate interior angle (in degrees)?
  20. 20.What is the supplement of 106° (in degrees)?
  21. 21.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its other interior angle on the same side of the transversal (in degrees)?
  23. 23.What is the supplement of 36° (in degrees)?
  24. 24.Are 71° and 62° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.Two straight lines cross each other. One of the angles formed is 82°. What is the angle vertically opposite to it (in degrees)?
  26. 26.What is the complement of 51° (in degrees)?
  27. 27.What is the complement of 46° (in degrees)?
  28. 28.Are 75° and 105° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 103°. What is its alternate interior angle (in degrees)?
  30. 30.What is the supplement of 151° (in degrees)?
  31. 31.What is the complement of 47° (in degrees)?
  32. 32.What is the complement of 70° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 141°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Are 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  35. 35.What is the supplement of 120° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 114°. What is its corresponding angle (in degrees)?
  37. 37.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 95°. What is its corresponding angle (in degrees)?
  39. 39.Two angles are supplementary. One is 132° more than the other. What is the bigger angle (in degrees)?
  40. 40.Are 34° and 56° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary

Answer key

  1. Neither
  2. 71
  3. 95
  4. 41
  5. 46
  6. 40
  7. 121
  8. 52
  9. 56
  10. 75
  11. 84
  12. 41
  13. 143
  14. 138
  15. 20
  16. 118
  17. Supplementary
  18. 30
  19. 111
  20. 74
  21. 50
  22. 44
  23. 144
  24. Neither
  25. 82
  26. 39
  27. 44
  28. Supplementary
  29. 103
  30. 29
  31. 43
  32. 20
  33. 141
  34. Supplementary
  35. 60
  36. 114
  37. 132
  38. 95
  39. 156
  40. Complementary

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