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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 302 · 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 56° and 124° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.What is the complement of 33° (in degrees)?
  3. 3.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)?
  4. 4.Are 32° and 148° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.What is the supplement of 20° (in degrees)?
  6. 6.What is the complement of 21° (in degrees)?
  7. 7.Are 51° and 129° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  8. 8.What is the supplement of 167° (in degrees)?
  9. 9.What is the complement of 56° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 27°. What is the angle next to it on the same line (in degrees)?
  11. 11.Are 31° and 149° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the supplement of 145° (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
  16. 16.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the complement of 13° (in degrees)?
  19. 19.What is the supplement of 80° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 144°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the complement of 18° (in degrees)?
  24. 24.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  25. 25.What is the supplement of 30° (in degrees)?
  26. 26.What is the supplement of 44° (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 57°. What is the angle next to it on the same line (in degrees)?
  28. 28.What is the complement of 83° (in degrees)?
  29. 29.What is the complement of 45° (in degrees)?
  30. 30.Are 47° and 43° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its other interior angle on the same side of the transversal (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 122°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.Are 30° and 60° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  36. 36.Are 69° and 10° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  37. 37.What is the complement of 17° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 33°. What is its corresponding angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. Supplementary
  2. 57
  3. 89
  4. Supplementary
  5. 160
  6. 69
  7. Supplementary
  8. 13
  9. 34
  10. 153
  11. Supplementary
  12. 56
  13. 71
  14. 35
  15. 83
  16. 68
  17. 132
  18. 77
  19. 100
  20. 144
  21. 91
  22. 66
  23. 72
  24. 52
  25. 150
  26. 136
  27. 123
  28. 7
  29. 45
  30. Complementary
  31. 50
  32. 58
  33. 58
  34. 104
  35. Complementary
  36. Neither
  37. 73
  38. 86
  39. 33
  40. 148

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