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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 961 · 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 29° and 151° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.What is the supplement of 84° (in degrees)?
  3. 3.Are 66° and 24° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  4. 4.Are 42° and 48° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.What is the complement of 35° (in degrees)?
  6. 6.What is the complement of 39° (in degrees)?
  7. 7.Are 56° and 120° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  8. 8.Two parallel lines are cut by a transversal. One angle is 89°. What is its corresponding angle (in degrees)?
  9. 9.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the supplement of 44° (in degrees)?
  11. 11.Are 52° and 45° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  12. 12.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 5° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 91°. What is the angle vertically opposite to it (in degrees)?
  15. 15.What is the complement of 26° (in degrees)?
  16. 16.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its alternate interior angle (in degrees)?
  18. 18.What is the complement of 73° (in degrees)?
  19. 19.Are 64° and 26° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  20. 20.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 43°. What is its corresponding angle (in degrees)?
  23. 23.Two angles are supplementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 157°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 26°. What is the angle vertically opposite to it (in degrees)?
  26. 26.Two angles are supplementary. One is 88° more than the other. What is the bigger angle (in degrees)?
  27. 27.Are 62° and 118° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  28. 28.What is the supplement of 120° (in degrees)?
  29. 29.What is the complement of 13° (in degrees)?
  30. 30.Two angles are supplementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  32. 32.Two angles are supplementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 112° (in degrees)?
  34. 34.What is the supplement of 71° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 145°. What is the angle next to it on the same line (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 148°. What is the angle next to it on the same line (in degrees)?
  38. 38.What is the supplement of 15° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its other interior angle on the same side of the transversal (in degrees)?
  40. 40.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)?

Answer key

  1. Supplementary
  2. 96
  3. Complementary
  4. Complementary
  5. 55
  6. 51
  7. Neither
  8. 89
  9. 122
  10. 136
  11. Neither
  12. 24
  13. 85
  14. 91
  15. 64
  16. 159
  17. 76
  18. 17
  19. Complementary
  20. 153
  21. 103
  22. 43
  23. 119
  24. 157
  25. 26
  26. 134
  27. Supplementary
  28. 60
  29. 77
  30. 109
  31. 36
  32. 125
  33. 68
  34. 109
  35. 41
  36. 35
  37. 32
  38. 165
  39. 116
  40. 117

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