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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 26 · 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 127° (in degrees)?
  2. 2.What is the supplement of 26° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 30°. What is the angle next to it on the same line (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 39°. What is the angle vertically opposite to it (in degrees)?
  5. 5.Are 80° and 10° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  6. 6.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  7. 7.Two parallel lines are cut by a transversal. One angle is 84°. What is its corresponding angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 63°. What is the angle vertically opposite to it (in degrees)?
  9. 9.What is the complement of 84° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 36°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.Are 31° and 77° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  12. 12.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  13. 13.What is the supplement of 46° (in degrees)?
  14. 14.What is the complement of 58° (in degrees)?
  15. 15.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the supplement of 23° (in degrees)?
  17. 17.What is the complement of 6° (in degrees)?
  18. 18.Are 69° and 153° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.What is the complement of 74° (in degrees)?
  20. 20.What is the supplement of 169° (in degrees)?
  21. 21.Are 49° and 85° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 155°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 92°. What is the angle next to it on the same line (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One angle is 114°. What is its corresponding angle (in degrees)?
  26. 26.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  27. 27.What is the complement of 43° (in degrees)?
  28. 28.Are 60° and 120° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 107°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 96°. What is the angle next to it on the same line (in degrees)?
  31. 31.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the supplement of 130° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 94°. What is its other interior angle on the same side of the transversal (in degrees)?
  36. 36.Are 60° and 30° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  37. 37.Two parallel lines are cut by a transversal. One angle is 69°. What is its corresponding angle (in degrees)?
  38. 38.What is the supplement of 22° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 80°. What is its alternate interior angle (in degrees)?
  40. 40.What is the complement of 85° (in degrees)?

Answer key

  1. 53
  2. 154
  3. 150
  4. 39
  5. Complementary
  6. Supplementary
  7. 84
  8. 63
  9. 6
  10. 144
  11. Neither
  12. 36
  13. 134
  14. 32
  15. 50
  16. 157
  17. 84
  18. Neither
  19. 16
  20. 11
  21. Neither
  22. 95
  23. 25
  24. 88
  25. 114
  26. 153
  27. 47
  28. Supplementary
  29. 73
  30. 84
  31. 135
  32. 20
  33. 46
  34. 50
  35. 86
  36. Complementary
  37. 69
  38. 158
  39. 80
  40. 5

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