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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 822 · 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 59° and 18° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the supplement of 87° (in degrees)?
  4. 4.What is the complement of 27° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 153°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 52°. What is its other interior angle on the same side of the transversal (in degrees)?
  7. 7.What is the supplement of 58° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its alternate interior angle (in degrees)?
  9. 9.What is the supplement of 172° (in degrees)?
  10. 10.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)?
  11. 11.What is the complement of 23° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 94°. What is its alternate interior angle (in degrees)?
  13. 13.What is the complement of 79° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 142°. What is the angle next to it on the same line (in degrees)?
  15. 15.What is the complement of 53° (in degrees)?
  16. 16.What is the supplement of 89° (in degrees)?
  17. 17.Are 79° and 11° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 85°. What is its other interior angle on the same side of the transversal (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 53°. What is the angle next to it on the same line (in degrees)?
  20. 20.What is the complement of 15° (in degrees)?
  21. 21.What is the supplement of 132° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 111°. What is its alternate interior angle (in degrees)?
  23. 23.Are 66° and 24° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  24. 24.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 158°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the supplement of 121° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 105°. What is its corresponding angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its other interior angle on the same side of the transversal (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its alternate interior angle (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 131°. What is the angle next to it on the same line (in degrees)?
  31. 31.Are 33° and 19° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  32. 32.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  34. 34.What is the complement of 12° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One angle is 56°. What is its corresponding angle (in degrees)?
  36. 36.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 55°. What is its alternate interior angle (in degrees)?
  38. 38.Are 62° and 28° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  39. 39.What is the supplement of 147° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 128°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. Neither
  2. 54
  3. 93
  4. 63
  5. 153
  6. 128
  7. 122
  8. 46
  9. 8
  10. 117
  11. 67
  12. 94
  13. 11
  14. 38
  15. 37
  16. 91
  17. Complementary
  18. 95
  19. 127
  20. 75
  21. 48
  22. 111
  23. Complementary
  24. 75
  25. 22
  26. 59
  27. 105
  28. 50
  29. 127
  30. 49
  31. Neither
  32. 101
  33. 127
  34. 78
  35. 56
  36. 46
  37. 55
  38. Complementary
  39. 33
  40. 52

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