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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 700 · 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 supplement of 45° (in degrees)?
  2. 2.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  3. 3.Are 57° and 33° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  4. 4.Two angles are supplementary. One is 28° 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 37°. What is its alternate interior angle (in degrees)?
  6. 6.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 75°. What is its alternate interior angle (in degrees)?
  9. 9.What is the supplement of 109° (in degrees)?
  10. 10.Are 70° and 20° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  11. 11.What is the supplement of 112° (in degrees)?
  12. 12.What is the complement of 6° (in degrees)?
  13. 13.What is the supplement of 11° (in degrees)?
  14. 14.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)?
  15. 15.Are 41° and 125° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  16. 16.Two straight lines cross each other. One of the angles formed is 39°. What is the angle next to it on the same line (in degrees)?
  17. 17.Are 64° and 26° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  18. 18.Are 40° and 106° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  19. 19.Two straight lines cross each other. One of the angles formed is 129°. What is the angle next to it on the same line (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 29°. What is the angle next to it on the same line (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its alternate interior angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 33°. What is the angle next to it on the same line (in degrees)?
  24. 24.What is the complement of 56° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One angle is 109°. What is its corresponding angle (in degrees)?
  26. 26.What is the supplement of 107° (in degrees)?
  27. 27.What is the complement of 43° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 67°. What is the angle next to it on the same line (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 70°. What is the angle next to it on the same line (in degrees)?
  30. 30.Are 22° and 60° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.What is the supplement of 39° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 147°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 139°. What is its corresponding angle (in degrees)?
  34. 34.What is the supplement of 80° (in degrees)?
  35. 35.Are 11° and 169° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 113°. What is its alternate interior angle (in degrees)?
  37. 37.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  39. 39.Are 43° and 47° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  40. 40.What is the supplement of 172° (in degrees)?

Answer key

  1. 135
  2. 68
  3. Complementary
  4. 104
  5. 37
  6. 138
  7. 48
  8. 75
  9. 71
  10. Complementary
  11. 68
  12. 84
  13. 169
  14. 126
  15. Neither
  16. 141
  17. Complementary
  18. Neither
  19. 51
  20. 151
  21. 20
  22. 124
  23. 147
  24. 34
  25. 109
  26. 73
  27. 47
  28. 113
  29. 110
  30. Neither
  31. 141
  32. 33
  33. 139
  34. 100
  35. Supplementary
  36. 113
  37. 102
  38. 123
  39. Complementary
  40. 8

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