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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 454 · 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 24° and 66° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 148°. What is its alternate interior angle (in degrees)?
  3. 3.What is the complement of 27° (in degrees)?
  4. 4.Are 26° and 75° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
  6. 6.Are 33° and 86° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  7. 7.Are 64° and 26° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  8. 8.What is the supplement of 83° (in degrees)?
  9. 9.What is the supplement of 132° (in degrees)?
  10. 10.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the supplement of 14° (in degrees)?
  12. 12.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 96°. What is its other interior angle on the same side of the transversal (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 102°. What is the angle next to it on the same line (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 117°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Are 79° and 11° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  17. 17.What is the complement of 68° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 119°. What is its corresponding angle (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 32°. What is the angle next to it on the same line (in degrees)?
  20. 20.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 54° and 36° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Two straight lines cross each other. One of the angles formed is 42°. What is the angle vertically opposite to it (in degrees)?
  23. 23.What is the supplement of 81° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 99°. What is its corresponding angle (in degrees)?
  25. 25.Are 61° and 119° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  26. 26.What is the complement of 66° (in degrees)?
  27. 27.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 24° (in degrees)?
  29. 29.Are 45° and 75° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  30. 30.What is the supplement of 126° (in degrees)?
  31. 31.What is the supplement of 46° (in degrees)?
  32. 32.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 108°. What is its alternate interior angle (in degrees)?
  34. 34.Two angles are supplementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the supplement of 28° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its other interior angle on the same side of the transversal (in degrees)?
  37. 37.What is the supplement of 25° (in degrees)?
  38. 38.Are 24° and 156° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  39. 39.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 105°. What is its corresponding angle (in degrees)?

Answer key

  1. Complementary
  2. 148
  3. 63
  4. Neither
  5. 152
  6. Neither
  7. Complementary
  8. 97
  9. 48
  10. 63
  11. 166
  12. 49
  13. 84
  14. 78
  15. 117
  16. Complementary
  17. 22
  18. 119
  19. 148
  20. 46
  21. Complementary
  22. 42
  23. 99
  24. 99
  25. Supplementary
  26. 24
  27. 47
  28. 156
  29. Neither
  30. 54
  31. 134
  32. 101
  33. 108
  34. 97
  35. 152
  36. 33
  37. 155
  38. Supplementary
  39. 49
  40. 105

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