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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 772 · 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 41° and 139° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.Two straight lines cross each other. One of the angles formed is 88°. What is the angle next to it on the same line (in degrees)?
  3. 3.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  4. 4.Are 74° and 16° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.What is the supplement of 108° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 134°. What is the angle next to it on the same line (in degrees)?
  7. 7.Are 16° and 42° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  8. 8.What is the supplement of 110° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  10. 10.Are 29° and 61° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  11. 11.What is the supplement of 143° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 104°. What is its corresponding angle (in degrees)?
  13. 13.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  15. 15.Are 17° and 16° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  16. 16.What is the complement of 84° (in degrees)?
  17. 17.What is the supplement of 80° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 101°. What is the angle vertically opposite to it (in degrees)?
  19. 19.What is the supplement of 8° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 158°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 110°. What is the angle vertically opposite to it (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 117°. What is its alternate interior angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 35°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 67° and 34° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  25. 25.What is the complement of 76° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.What is the supplement of 106° (in degrees)?
  28. 28.What is the complement of 22° (in degrees)?
  29. 29.Are 46° and 134° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  30. 30.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 39°. What is its corresponding angle (in degrees)?
  32. 32.What is the supplement of 160° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two angles are supplementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 108°. What is its alternate interior angle (in degrees)?
  36. 36.Are 69° and 39° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  37. 37.Two parallel lines are cut by a transversal. One angle is 82°. What is its corresponding angle (in degrees)?
  38. 38.What is the complement of 13° (in degrees)?
  39. 39.Are 19° and 71° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  40. 40.What is the supplement of 20° (in degrees)?

Answer key

  1. Supplementary
  2. 92
  3. 136
  4. Complementary
  5. 72
  6. 46
  7. Neither
  8. 70
  9. 138
  10. Complementary
  11. 37
  12. 104
  13. 73
  14. 127
  15. Neither
  16. 6
  17. 100
  18. 101
  19. 172
  20. 158
  21. 110
  22. 117
  23. 35
  24. Neither
  25. 14
  26. 121
  27. 74
  28. 68
  29. Supplementary
  30. 43
  31. 39
  32. 20
  33. 34
  34. 98
  35. 108
  36. Neither
  37. 82
  38. 77
  39. Complementary
  40. 160

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