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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 963 · 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 30° and 60° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.What is the complement of 10° (in degrees)?
  3. 3.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 27° (in degrees)?
  5. 5.What is the supplement of 38° (in degrees)?
  6. 6.What is the complement of 68° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One angle is 87°. What is its corresponding angle (in degrees)?
  8. 8.What is the complement of 7° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 141°. What is its other interior angle on the same side of the transversal (in degrees)?
  12. 12.Are 45° and 45° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  13. 13.Two straight lines cross each other. One of the angles formed is 99°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 150°. What is its corresponding angle (in degrees)?
  15. 15.What is the complement of 13° (in degrees)?
  16. 16.What is the complement of 74° (in degrees)?
  17. 17.What is the supplement of 70° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  19. 19.Are 27° and 63° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  20. 20.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 80° and 10° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  22. 22.What is the supplement of 146° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 32°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 47° and 43° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.What is the supplement of 45° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Are 10° and 67° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  28. 28.Two straight lines cross each other. One of the angles formed is 148°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  30. 30.Are 19° and 71° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its other interior angle on the same side of the transversal (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 158°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 150°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  36. 36.What is the complement of 66° (in degrees)?
  37. 37.What is the supplement of 28° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 65°. What is its alternate interior angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 46°. What is its corresponding angle (in degrees)?
  40. 40.What is the supplement of 149° (in degrees)?

Answer key

  1. Complementary
  2. 80
  3. 68
  4. 153
  5. 142
  6. 22
  7. 87
  8. 83
  9. 60
  10. 136
  11. 39
  12. Complementary
  13. 99
  14. 150
  15. 77
  16. 16
  17. 110
  18. 70
  19. Complementary
  20. 114
  21. Complementary
  22. 34
  23. 32
  24. Complementary
  25. 135
  26. 139
  27. Neither
  28. 148
  29. 159
  30. Complementary
  31. 40
  32. 22
  33. 150
  34. 36
  35. 73
  36. 24
  37. 152
  38. 65
  39. 46
  40. 31

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