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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 298 · 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 44° and 46° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two angles are supplementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 54° (in degrees)?
  5. 5.What is the complement of 39° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 96°. What is the angle next to it on the same line (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 73°. What is its corresponding angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 28°. What is the angle vertically opposite to it (in degrees)?
  12. 12.What is the complement of 43° (in degrees)?
  13. 13.What is the supplement of 76° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 143°. What is the angle vertically opposite to it (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 81°. What is its alternate interior angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 72°. What is the angle next to it on the same line (in degrees)?
  17. 17.What is the supplement of 26° (in degrees)?
  18. 18.Are 41° and 139° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 99°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.Are 12° and 78° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  21. 21.What is the supplement of 41° (in degrees)?
  22. 22.What is the supplement of 86° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.What is the complement of 66° (in degrees)?
  25. 25.Are 46° and 134° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.What is the supplement of 21° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 126°. What is its other interior angle on the same side of the transversal (in degrees)?
  28. 28.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  29. 29.What is the supplement of 151° (in degrees)?
  30. 30.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two angles are complementary. One is 54° 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 142°. What is the angle vertically opposite to it (in degrees)?
  33. 33.What is the complement of 15° (in degrees)?
  34. 34.Are 18° and 68° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  35. 35.Are 30° and 60° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.What is the supplement of 59° (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 145°. What is its corresponding angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 137°. What is its corresponding angle (in degrees)?
  39. 39.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the supplement of 118° (in degrees)?

Answer key

  1. Complementary
  2. 98
  3. 75
  4. 126
  5. 51
  6. 60
  7. 33
  8. 74
  9. 84
  10. 73
  11. 28
  12. 47
  13. 104
  14. 143
  15. 81
  16. 108
  17. 154
  18. Supplementary
  19. 81
  20. Complementary
  21. 139
  22. 94
  23. 117
  24. 24
  25. Supplementary
  26. 159
  27. 54
  28. 58
  29. 29
  30. 76
  31. 72
  32. 142
  33. 75
  34. Neither
  35. Complementary
  36. 121
  37. 145
  38. 137
  39. 96
  40. 62

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