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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 897 · 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.What is the complement of 64° (in degrees)?
  2. 2.What is the complement of 48° (in degrees)?
  3. 3.What is the supplement of 132° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its other interior angle on the same side of the transversal (in degrees)?
  6. 6.What is the complement of 61° (in degrees)?
  7. 7.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 145°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  11. 11.What is the supplement of 28° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 33°. What is the angle vertically opposite to it (in degrees)?
  13. 13.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 70°. What is its alternate interior angle (in degrees)?
  15. 15.What is the complement of 34° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.What is the complement of 54° (in degrees)?
  18. 18.Are 45° and 45° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 50°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.What is the supplement of 111° (in degrees)?
  21. 21.Two angles are supplementary. One is 112° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 79°. What is its alternate interior angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 142°. What is its corresponding angle (in degrees)?
  24. 24.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 124°. What is the angle vertically opposite to it (in degrees)?
  26. 26.Are 39° and 16° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  27. 27.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the complement of 5° (in degrees)?
  29. 29.What is the supplement of 172° (in degrees)?
  30. 30.Two angles are supplementary. One is 130° more than the other. What is the bigger angle (in degrees)?
  31. 31.Are 40° and 140° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  32. 32.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the complement of 67° (in degrees)?
  34. 34.What is the supplement of 59° (in degrees)?
  35. 35.Are 17° and 68° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.Two angles are supplementary. One is 110° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its alternate interior angle (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 120°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 26
  2. 42
  3. 48
  4. 104
  5. 53
  6. 29
  7. 136
  8. 145
  9. 53
  10. 52
  11. 152
  12. 33
  13. 112
  14. 70
  15. 56
  16. 30
  17. 36
  18. Complementary
  19. 130
  20. 69
  21. 146
  22. 79
  23. 142
  24. 105
  25. 124
  26. Neither
  27. 100
  28. 85
  29. 8
  30. 155
  31. Supplementary
  32. 56
  33. 23
  34. 121
  35. Neither
  36. 145
  37. 70
  38. 116
  39. 130
  40. 60

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