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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 296 · 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 165° (in degrees)?
  2. 2.What is the supplement of 57° (in degrees)?
  3. 3.Are 75° and 134° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.What is the complement of 76° (in degrees)?
  5. 5.Are 60° and 30° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  6. 6.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 20° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 31°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.What is the supplement of 41° (in degrees)?
  10. 10.What is the supplement of 96° (in degrees)?
  11. 11.What is the complement of 71° (in degrees)?
  12. 12.What is the supplement of 160° (in degrees)?
  13. 13.What is the complement of 5° (in degrees)?
  14. 14.Are 43° and 137° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.Are 59° and 121° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  16. 16.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 99°. What is the angle next to it on the same line (in degrees)?
  18. 18.Are 23° and 67° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  19. 19.Are 66° and 148° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 50°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 136°. What is its corresponding angle (in degrees)?
  22. 22.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 42°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.What is the supplement of 109° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 92°. What is its other interior angle on the same side of the transversal (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 50°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 59°. What is the angle next to it on the same line (in degrees)?
  28. 28.What is the complement of 20° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 49°. What is its alternate interior angle (in degrees)?
  30. 30.Are 78° and 102° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  31. 31.Are 34° and 146° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  32. 32.Two parallel lines are cut by a transversal. One angle is 99°. What is its corresponding angle (in degrees)?
  33. 33.What is the supplement of 124° (in degrees)?
  34. 34.Are 53° and 95° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  35. 35.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  37. 37.Are 15° and 165° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  38. 38.Two parallel lines are cut by a transversal. One angle is 132°. What is its corresponding angle (in degrees)?
  39. 39.What is the complement of 40° (in degrees)?
  40. 40.What is the supplement of 60° (in degrees)?

Answer key

  1. 15
  2. 123
  3. Neither
  4. 14
  5. Complementary
  6. 132
  7. 160
  8. 149
  9. 139
  10. 84
  11. 19
  12. 20
  13. 85
  14. Supplementary
  15. Supplementary
  16. 63
  17. 81
  18. Complementary
  19. Neither
  20. 130
  21. 136
  22. 62
  23. 138
  24. 71
  25. 88
  26. 50
  27. 121
  28. 70
  29. 49
  30. Supplementary
  31. Supplementary
  32. 99
  33. 56
  34. Neither
  35. 61
  36. 60
  37. Supplementary
  38. 132
  39. 50
  40. 120

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