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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 807 · 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 56° and 34° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.What is the supplement of 166° (in degrees)?
  3. 3.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 112° (in degrees)?
  5. 5.Are 74° and 16° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  6. 6.Two straight lines cross each other. One of the angles formed is 39°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 90°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two angles are supplementary. One is 112° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 18° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  11. 11.Are 25° and 114° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 102°. What is its alternate interior angle (in degrees)?
  13. 13.What is the supplement of 157° (in degrees)?
  14. 14.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the complement of 71° (in degrees)?
  16. 16.Are 16° and 74° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.Are 31° and 64° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.What is the supplement of 72° (in degrees)?
  19. 19.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the supplement of 82° (in degrees)?
  21. 21.Are 42° and 48° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.What is the complement of 77° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 43°. What is its corresponding angle (in degrees)?
  24. 24.What is the supplement of 49° (in degrees)?
  25. 25.Are 54° and 126° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  26. 26.Two straight lines cross each other. One of the angles formed is 44°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 61°. What is the angle next to it on the same line (in degrees)?
  28. 28.What is the supplement of 65° (in degrees)?
  29. 29.Are 60° and 136° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  30. 30.Two straight lines cross each other. One of the angles formed is 144°. What is the angle vertically opposite to it (in degrees)?
  31. 31.What is the complement of 26° (in degrees)?
  32. 32.What is the complement of 84° (in degrees)?
  33. 33.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 54°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 45°. What is its alternate interior angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 91°. What is the angle next to it on the same line (in degrees)?
  38. 38.What is the complement of 55° (in degrees)?
  39. 39.What is the complement of 64° (in degrees)?
  40. 40.Are 16° and 167° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary

Answer key

  1. Complementary
  2. 14
  3. 49
  4. 68
  5. Complementary
  6. 39
  7. 90
  8. 146
  9. 72
  10. 76
  11. Neither
  12. 102
  13. 23
  14. 112
  15. 19
  16. Complementary
  17. Neither
  18. 108
  19. 79
  20. 98
  21. Complementary
  22. 13
  23. 43
  24. 131
  25. Supplementary
  26. 44
  27. 119
  28. 115
  29. Neither
  30. 144
  31. 64
  32. 6
  33. 138
  34. 126
  35. 123
  36. 45
  37. 89
  38. 35
  39. 26
  40. Neither

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