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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 622 · 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 56° and 124° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  4. 4.Are 24° and 66° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 160° (in degrees)?
  8. 8.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  10. 10.What is the supplement of 115° (in degrees)?
  11. 11.Are 54° and 23° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  12. 12.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the complement of 65° (in degrees)?
  14. 14.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 68°. What is the angle next to it on the same line (in degrees)?
  17. 17.What is the complement of 9° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
  19. 19.Are 70° and 20° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.Are 35° and 55° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 135°. What is its alternate interior angle (in degrees)?
  22. 22.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the complement of 33° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 91°. What is its corresponding angle (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 133°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the supplement of 133° (in degrees)?
  27. 27.What is the supplement of 19° (in degrees)?
  28. 28.What is the supplement of 154° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One angle is 140°. What is its corresponding angle (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 22°. What is the angle next to it on the same line (in degrees)?
  31. 31.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its alternate interior angle (in degrees)?
  33. 33.Are 41° and 139° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 103°. What is its alternate interior angle (in degrees)?
  36. 36.What is the complement of 47° (in degrees)?
  37. 37.Are 41° and 49° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  38. 38.Two straight lines cross each other. One of the angles formed is 102°. What is the angle vertically opposite to it (in degrees)?
  39. 39.Are 73° and 59° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  40. 40.What is the complement of 34° (in degrees)?

Answer key

  1. Supplementary
  2. 70
  3. 132
  4. Complementary
  5. 61
  6. 60
  7. 20
  8. 48
  9. 127
  10. 65
  11. Neither
  12. 99
  13. 25
  14. 56
  15. 77
  16. 112
  17. 81
  18. 114
  19. Complementary
  20. Complementary
  21. 135
  22. 118
  23. 57
  24. 91
  25. 47
  26. 47
  27. 161
  28. 26
  29. 140
  30. 158
  31. 116
  32. 121
  33. Supplementary
  34. 59
  35. 103
  36. 43
  37. Complementary
  38. 102
  39. Neither
  40. 56

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