← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 368 · 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 angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  2. 2.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 41°. What is the angle next to it on the same line (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 118°. What is its alternate interior angle (in degrees)?
  5. 5.Are 77° and 72° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  6. 6.Two parallel lines are cut by a transversal. One angle is 110°. What is its corresponding angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 39°. What is the angle vertically opposite to it (in degrees)?
  8. 8.What is the supplement of 26° (in degrees)?
  9. 9.What is the supplement of 50° (in degrees)?
  10. 10.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)?
  11. 11.What is the supplement of 160° (in degrees)?
  12. 12.What is the supplement of 174° (in degrees)?
  13. 13.What is the supplement of 77° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 150°. What is the angle next to it on the same line (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 111°. What is its alternate interior angle (in degrees)?
  16. 16.What is the complement of 85° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its alternate interior angle (in degrees)?
  18. 18.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)?
  19. 19.Two straight lines cross each other. One of the angles formed is 39°. What is the angle next to it on the same line (in degrees)?
  20. 20.Are 79° and 101° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  21. 21.What is the supplement of 88° (in degrees)?
  22. 22.What is the complement of 33° (in degrees)?
  23. 23.What is the complement of 30° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Are 28° and 62° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  26. 26.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  27. 27.Are 10° and 50° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  28. 28.What is the supplement of 75° (in degrees)?
  29. 29.Are 41° and 36° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  30. 30.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 90°. What is its alternate interior angle (in degrees)?
  32. 32.Are 62° and 28° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  33. 33.What is the supplement of 165° (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 141°. What is its corresponding angle (in degrees)?
  35. 35.What is the supplement of 34° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its other interior angle on the same side of the transversal (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 67°. What is its alternate interior angle (in degrees)?
  38. 38.What is the supplement of 146° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  40. 40.What is the supplement of 70° (in degrees)?

Answer key

  1. 67
  2. 69
  3. 139
  4. 118
  5. Neither
  6. 110
  7. 39
  8. 154
  9. 130
  10. 50
  11. 20
  12. 6
  13. 103
  14. 30
  15. 111
  16. 5
  17. 82
  18. 123
  19. 141
  20. Supplementary
  21. 92
  22. 57
  23. 60
  24. 49
  25. Complementary
  26. 120
  27. Neither
  28. 105
  29. Neither
  30. 63
  31. 90
  32. Complementary
  33. 15
  34. 141
  35. 146
  36. 120
  37. 67
  38. 34
  39. 86
  40. 110

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets