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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 534 · 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.Two parallel lines are cut by a transversal. One interior angle is 95°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.Are 50° and 12° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  3. 3.What is the supplement of 59° (in degrees)?
  4. 4.What is the supplement of 46° (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 91°. What is its other interior angle on the same side of the transversal (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One angle is 31°. What is its corresponding angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 35°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two angles are supplementary. One is 100° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  10. 10.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 121°. What is its corresponding angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 137°. What is the angle vertically opposite to it (in degrees)?
  13. 13.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 92°. What is the angle vertically opposite to it (in degrees)?
  15. 15.Are 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 105°. What is its corresponding angle (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 61°. What is its corresponding angle (in degrees)?
  19. 19.What is the supplement of 33° (in degrees)?
  20. 20.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the supplement of 70° (in degrees)?
  22. 22.What is the complement of 42° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 127°. What is the angle next to it on the same line (in degrees)?
  24. 24.What is the complement of 33° (in degrees)?
  25. 25.What is the complement of 43° (in degrees)?
  26. 26.Are 72° and 108° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  27. 27.What is the supplement of 162° (in degrees)?
  28. 28.What is the supplement of 159° (in degrees)?
  29. 29.What is the supplement of 108° (in degrees)?
  30. 30.Two angles are supplementary. One is 88° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 166° (in degrees)?
  32. 32.Are 43° and 57° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  33. 33.What is the complement of 73° (in degrees)?
  34. 34.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)?
  35. 35.Are 49° and 41° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  36. 36.Are 23° and 157° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  37. 37.Are 53° and 37° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  38. 38.What is the supplement of 164° (in degrees)?
  39. 39.Are 25° and 155° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  40. 40.Are 55° and 35° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary

Answer key

  1. 85
  2. Neither
  3. 121
  4. 134
  5. 89
  6. 31
  7. 35
  8. 140
  9. 86
  10. 151
  11. 121
  12. 137
  13. 100
  14. 92
  15. Supplementary
  16. 87
  17. 105
  18. 61
  19. 147
  20. 152
  21. 110
  22. 48
  23. 53
  24. 57
  25. 47
  26. Supplementary
  27. 18
  28. 21
  29. 72
  30. 134
  31. 14
  32. Neither
  33. 17
  34. 95
  35. Complementary
  36. Supplementary
  37. Complementary
  38. 16
  39. Supplementary
  40. Complementary

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