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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 928 · 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 18° and 162° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.What is the complement of 11° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  4. 4.What is the supplement of 33° (in degrees)?
  5. 5.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  6. 6.What is the complement of 45° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 26°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 119°. What is its corresponding angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its alternate interior angle (in degrees)?
  10. 10.Two angles are supplementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the supplement of 32° (in degrees)?
  12. 12.What is the complement of 80° (in degrees)?
  13. 13.What is the supplement of 39° (in degrees)?
  14. 14.Are 64° and 116° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.Two straight lines cross each other. One of the angles formed is 127°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 131°. What is the angle vertically opposite to it (in degrees)?
  17. 17.What is the supplement of 29° (in degrees)?
  18. 18.Are 37° and 53° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  19. 19.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 28° and 152° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  21. 21.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  24. 24.What is the complement of 22° (in degrees)?
  25. 25.What is the complement of 59° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its alternate interior angle (in degrees)?
  27. 27.What is the supplement of 103° (in degrees)?
  28. 28.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Are 29° and 151° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.Are 35° and 55° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  32. 32.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 84°. What is the angle next to it on the same line (in degrees)?
  35. 35.Are 10° and 80° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  36. 36.Two parallel lines are cut by a transversal. One angle is 143°. What is its corresponding angle (in degrees)?
  37. 37.Two angles are supplementary. One is 74° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the complement of 30° (in degrees)?
  39. 39.What is the supplement of 167° (in degrees)?
  40. 40.Are 38° and 52° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. Supplementary
  2. 79
  3. 49
  4. 147
  5. 79
  6. 45
  7. 26
  8. 119
  9. 59
  10. 106
  11. 148
  12. 10
  13. 141
  14. Supplementary
  15. 127
  16. 131
  17. 151
  18. Complementary
  19. 105
  20. Supplementary
  21. 65
  22. 108
  23. 36
  24. 68
  25. 31
  26. 77
  27. 77
  28. 70
  29. 123
  30. Supplementary
  31. Complementary
  32. 96
  33. 34
  34. 96
  35. Complementary
  36. 143
  37. 127
  38. 60
  39. 13
  40. Complementary

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