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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 186 · 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 interior angle is 48°. What is its alternate interior angle (in degrees)?
  2. 2.What is the complement of 47° (in degrees)?
  3. 3.What is the complement of 28° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  5. 5.What is the supplement of 135° (in degrees)?
  6. 6.What is the supplement of 90° (in degrees)?
  7. 7.What is the supplement of 88° (in degrees)?
  8. 8.What is the complement of 40° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its other interior angle on the same side of the transversal (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
  11. 11.What is the supplement of 71° (in degrees)?
  12. 12.What is the complement of 18° (in degrees)?
  13. 13.What is the supplement of 119° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 131°. What is its corresponding angle (in degrees)?
  15. 15.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the complement of 10° (in degrees)?
  17. 17.What is the supplement of 107° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its alternate interior angle (in degrees)?
  19. 19.What is the supplement of 168° (in degrees)?
  20. 20.What is the supplement of 73° (in degrees)?
  21. 21.What is the supplement of 67° (in degrees)?
  22. 22.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the supplement of 139° (in degrees)?
  24. 24.What is the complement of 52° (in degrees)?
  25. 25.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 109° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 145°. What is its other interior angle on the same side of the transversal (in degrees)?
  28. 28.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 37°. What is the angle next to it on the same line (in degrees)?
  30. 30.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the complement of 32° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its alternate interior angle (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  34. 34.What is the complement of 35° (in degrees)?
  35. 35.What is the complement of 51° (in degrees)?
  36. 36.Are 28° and 152° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  37. 37.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 77°. What is its corresponding angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 146°. What is its corresponding angle (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 25°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 48
  2. 43
  3. 62
  4. 70
  5. 45
  6. 90
  7. 92
  8. 50
  9. 98
  10. 37
  11. 109
  12. 72
  13. 61
  14. 131
  15. 51
  16. 80
  17. 73
  18. 60
  19. 12
  20. 107
  21. 113
  22. 64
  23. 41
  24. 38
  25. 104
  26. 71
  27. 35
  28. 78
  29. 143
  30. 159
  31. 58
  32. 46
  33. 75
  34. 55
  35. 39
  36. Supplementary
  37. 116
  38. 77
  39. 146
  40. 25

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