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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 279 · 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 44° (in degrees)?
  2. 2.What is the supplement of 148° (in degrees)?
  3. 3.Are 14° and 76° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its alternate interior angle (in degrees)?
  6. 6.Are 22° and 68° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  7. 7.Two straight lines cross each other. One of the angles formed is 127°. What is the angle next to it on the same line (in degrees)?
  8. 8.Are 70° and 58° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  9. 9.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 83° (in degrees)?
  11. 11.What is the supplement of 51° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 47°. What is its corresponding angle (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 92°. What is its alternate interior angle (in degrees)?
  14. 14.Are 34° and 56° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  15. 15.What is the supplement of 147° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
  17. 17.What is the complement of 8° (in degrees)?
  18. 18.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its alternate interior angle (in degrees)?
  20. 20.Are 12° and 168° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  21. 21.Are 55° and 12° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  22. 22.What is the complement of 5° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 38°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.What is the supplement of 23° (in degrees)?
  25. 25.Are 16° and 74° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  26. 26.What is the complement of 55° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 86°. What is its other interior angle on the same side of the transversal (in degrees)?
  28. 28.What is the supplement of 21° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 71°. What is the angle next to it on the same line (in degrees)?
  30. 30.What is the complement of 74° (in degrees)?
  31. 31.What is the supplement of 167° (in degrees)?
  32. 32.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 118° (in degrees)?
  34. 34.What is the supplement of 28° (in degrees)?
  35. 35.What is the supplement of 90° (in degrees)?
  36. 36.What is the complement of 31° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 134°. What is the angle vertically opposite to it (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 114°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 82°. What is its corresponding angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?

Answer key

  1. 46
  2. 32
  3. Complementary
  4. 101
  5. 46
  6. Complementary
  7. 53
  8. Neither
  9. 104
  10. 7
  11. 129
  12. 47
  13. 92
  14. Complementary
  15. 33
  16. 83
  17. 82
  18. 72
  19. 63
  20. Supplementary
  21. Neither
  22. 85
  23. 142
  24. 157
  25. Complementary
  26. 35
  27. 94
  28. 159
  29. 109
  30. 16
  31. 13
  32. 61
  33. 62
  34. 152
  35. 90
  36. 59
  37. 134
  38. 66
  39. 82
  40. 44

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