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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 310 · 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 47° and 133° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.What is the complement of 82° (in degrees)?
  3. 3.What is the complement of 30° (in degrees)?
  4. 4.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 24° and 66° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  6. 6.Two parallel lines are cut by a transversal. One angle is 46°. What is its corresponding angle (in degrees)?
  7. 7.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the supplement of 26° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 82°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the complement of 80° (in degrees)?
  12. 12.What is the supplement of 114° (in degrees)?
  13. 13.What is the supplement of 106° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 102°. What is its corresponding angle (in degrees)?
  15. 15.What is the supplement of 150° (in degrees)?
  16. 16.Are 61° and 29° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.What is the supplement of 111° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 37°. What is its other interior angle on the same side of the transversal (in degrees)?
  19. 19.What is the supplement of 63° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 120°. What is the angle vertically opposite to it (in degrees)?
  21. 21.What is the complement of 84° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 52°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 33°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 105°. What is its alternate interior angle (in degrees)?
  26. 26.What is the complement of 15° (in degrees)?
  27. 27.What is the complement of 18° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 152°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Are 48° and 42° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  30. 30.Are 71° and 19° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  31. 31.Two parallel lines are cut by a transversal. One angle is 50°. What is its corresponding angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 113°. What is its alternate interior angle (in degrees)?
  33. 33.What is the complement of 44° (in degrees)?
  34. 34.What is the complement of 67° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 123°. What is its alternate interior angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 63°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the complement of 58° (in degrees)?
  38. 38.What is the complement of 22° (in degrees)?
  39. 39.What is the complement of 6° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 52°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. Supplementary
  2. 8
  3. 60
  4. 104
  5. Complementary
  6. 46
  7. 151
  8. 154
  9. 82
  10. 103
  11. 10
  12. 66
  13. 74
  14. 102
  15. 30
  16. Complementary
  17. 69
  18. 143
  19. 117
  20. 120
  21. 6
  22. 127
  23. 128
  24. 33
  25. 105
  26. 75
  27. 72
  28. 152
  29. Complementary
  30. Complementary
  31. 50
  32. 113
  33. 46
  34. 23
  35. 123
  36. 63
  37. 32
  38. 68
  39. 84
  40. 128

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