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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 808 · 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 42° and 79° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.What is the supplement of 8° (in degrees)?
  3. 3.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  4. 4.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)?
  5. 5.Are 62° and 118° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  6. 6.What is the complement of 33° (in degrees)?
  7. 7.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)?
  8. 8.What is the supplement of 40° (in degrees)?
  9. 9.What is the complement of 23° (in degrees)?
  10. 10.Are 70° and 20° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  11. 11.What is the supplement of 46° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 112°. What is the angle next to it on the same line (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 101°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 140°. What is the angle next to it on the same line (in degrees)?
  15. 15.What is the complement of 81° (in degrees)?
  16. 16.What is the complement of 59° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 80°. What is the angle next to it on the same line (in degrees)?
  18. 18.Two angles are supplementary. One is 120° more than the other. What is the bigger angle (in degrees)?
  19. 19.Are 62° and 28° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  20. 20.What is the supplement of 116° (in degrees)?
  21. 21.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the complement of 57° (in degrees)?
  23. 23.What is the supplement of 10° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 75°. What is its corresponding angle (in degrees)?
  25. 25.What is the complement of 25° (in degrees)?
  26. 26.What is the complement of 27° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its other interior angle on the same side of the transversal (in degrees)?
  28. 28.What is the complement of 75° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 114°. What is the angle next to it on the same line (in degrees)?
  30. 30.What is the supplement of 23° (in degrees)?
  31. 31.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  32. 32.Are 61° and 29° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.What is the complement of 39° (in degrees)?
  34. 34.Are 48° and 132° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  35. 35.Two angles are supplementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the complement of 67° (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 107°. What is the angle next to it on the same line (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 119°. What is its alternate interior angle (in degrees)?
  40. 40.What is the complement of 34° (in degrees)?

Answer key

  1. Neither
  2. 172
  3. 91
  4. 39
  5. Supplementary
  6. 57
  7. 65
  8. 140
  9. 67
  10. Complementary
  11. 134
  12. 68
  13. 101
  14. 40
  15. 9
  16. 31
  17. 100
  18. 150
  19. Complementary
  20. 64
  21. 46
  22. 33
  23. 170
  24. 75
  25. 65
  26. 63
  27. 118
  28. 15
  29. 66
  30. 157
  31. 75
  32. Complementary
  33. 51
  34. Supplementary
  35. 109
  36. 108
  37. 23
  38. 73
  39. 119
  40. 56

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