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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 518 · 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 62° and 118° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 101°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the complement of 62° (in degrees)?
  5. 5.What is the complement of 61° (in degrees)?
  6. 6.Are 76° and 14° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 131°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.What is the supplement of 95° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 71°. What is its corresponding angle (in degrees)?
  10. 10.Are 18° and 162° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  11. 11.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 141°. What is its corresponding angle (in degrees)?
  15. 15.Are 12° and 168° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.What is the complement of 25° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 115°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 42°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 58°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the supplement of 175° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 149°. What is its corresponding angle (in degrees)?
  24. 24.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  25. 25.What is the complement of 58° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 40°. What is the angle next to it on the same line (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 132°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  29. 29.Are 42° and 30° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  30. 30.What is the supplement of 125° (in degrees)?
  31. 31.What is the complement of 56° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 154°. What is the angle next to it on the same line (in degrees)?
  33. 33.What is the complement of 81° (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 104°. What is the angle next to it on the same line (in degrees)?
  35. 35.Are 49° and 41° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  36. 36.What is the complement of 49° (in degrees)?
  37. 37.What is the supplement of 135° (in degrees)?
  38. 38.What is the supplement of 52° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 85°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the supplement of 17° (in degrees)?

Answer key

  1. Supplementary
  2. 56
  3. 79
  4. 28
  5. 29
  6. Complementary
  7. 49
  8. 85
  9. 71
  10. Supplementary
  11. 157
  12. 69
  13. 72
  14. 141
  15. Supplementary
  16. 65
  17. 115
  18. 65
  19. 92
  20. 42
  21. 122
  22. 5
  23. 149
  24. 105
  25. 32
  26. 140
  27. 132
  28. 63
  29. Neither
  30. 55
  31. 34
  32. 26
  33. 9
  34. 76
  35. Complementary
  36. 41
  37. 45
  38. 128
  39. 95
  40. 163

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