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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 719 · 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 parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  2. 2.What is the complement of 13° (in degrees)?
  3. 3.Are 11° and 79° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  4. 4.Two angles are supplementary. One is 120° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 46°. What is the angle next to it on the same line (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 78°. What is its corresponding angle (in degrees)?
  7. 7.What is the supplement of 35° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 52°. What is its corresponding angle (in degrees)?
  9. 9.What is the supplement of 54° (in degrees)?
  10. 10.What is the complement of 57° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 65°. What is the angle vertically opposite to it (in degrees)?
  12. 12.What is the complement of 82° (in degrees)?
  13. 13.Are 77° and 13° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  14. 14.What is the supplement of 51° (in degrees)?
  15. 15.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 105°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.What is the complement of 9° (in degrees)?
  18. 18.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
  21. 21.What is the supplement of 124° (in degrees)?
  22. 22.Are 63° and 117° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  23. 23.What is the supplement of 16° (in degrees)?
  24. 24.What is the complement of 38° (in degrees)?
  25. 25.What is the complement of 25° (in degrees)?
  26. 26.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the supplement of 80° (in degrees)?
  28. 28.What is the supplement of 162° (in degrees)?
  29. 29.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the supplement of 174° (in degrees)?
  31. 31.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 100°. What is the angle next to it on the same line (in degrees)?
  33. 33.What is the complement of 15° (in degrees)?
  34. 34.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the supplement of 73° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 148°. What is the angle next to it on the same line (in degrees)?
  37. 37.What is the supplement of 96° (in degrees)?
  38. 38.What is the complement of 76° (in degrees)?
  39. 39.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  40. 40.Are 67° and 113° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. 53
  2. 77
  3. Complementary
  4. 150
  5. 134
  6. 78
  7. 145
  8. 52
  9. 126
  10. 33
  11. 65
  12. 8
  13. Complementary
  14. 129
  15. 48
  16. 75
  17. 81
  18. 52
  19. 66
  20. 20
  21. 56
  22. Supplementary
  23. 164
  24. 52
  25. 65
  26. 122
  27. 100
  28. 18
  29. 73
  30. 6
  31. 130
  32. 80
  33. 75
  34. 96
  35. 107
  36. 32
  37. 84
  38. 14
  39. 153
  40. Supplementary

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