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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 888 · 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 8° more than the other. What is the bigger angle (in degrees)?
  2. 2.Are 12° and 168° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.Two straight lines cross each other. One of the angles formed is 126°. What is the angle vertically opposite to it (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One angle is 38°. What is its corresponding angle (in degrees)?
  5. 5.What is the complement of 37° (in degrees)?
  6. 6.Two angles are supplementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 54°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.What is the supplement of 158° (in degrees)?
  9. 9.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 71°. What is the angle next to it on the same line (in degrees)?
  12. 12.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  13. 13.Are 33° and 57° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  14. 14.What is the complement of 73° (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its other interior angle on the same side of the transversal (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 109°. What is its corresponding angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 115°. What is the angle next to it on the same line (in degrees)?
  18. 18.What is the supplement of 15° (in degrees)?
  19. 19.Are 17° and 163° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  20. 20.What is the supplement of 33° (in degrees)?
  21. 21.What is the complement of 42° (in degrees)?
  22. 22.Are 17° and 73° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  23. 23.Two parallel lines are cut by a transversal. One angle is 89°. What is its corresponding angle (in degrees)?
  24. 24.What is the complement of 33° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 84°. What is its alternate interior angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 117°. What is the angle vertically opposite to it (in degrees)?
  27. 27.What is the complement of 8° (in degrees)?
  28. 28.What is the supplement of 49° (in degrees)?
  29. 29.What is the complement of 53° (in degrees)?
  30. 30.What is the supplement of 38° (in degrees)?
  31. 31.What is the complement of 48° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
  33. 33.What is the supplement of 152° (in degrees)?
  34. 34.What is the complement of 22° (in degrees)?
  35. 35.What is the complement of 68° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 65°. What is its alternate interior angle (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 39°. What is its corresponding angle (in degrees)?
  38. 38.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the supplement of 69° (in degrees)?
  40. 40.What is the supplement of 148° (in degrees)?

Answer key

  1. 49
  2. Supplementary
  3. 126
  4. 38
  5. 53
  6. 110
  7. 126
  8. 22
  9. 60
  10. 132
  11. 109
  12. 65
  13. Complementary
  14. 17
  15. 36
  16. 109
  17. 65
  18. 165
  19. Supplementary
  20. 147
  21. 48
  22. Complementary
  23. 89
  24. 57
  25. 84
  26. 117
  27. 82
  28. 131
  29. 37
  30. 142
  31. 42
  32. 34
  33. 28
  34. 68
  35. 22
  36. 65
  37. 39
  38. 118
  39. 111
  40. 32

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