← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 216 · 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 complement of 63° (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  3. 3.What is the complement of 53° (in degrees)?
  4. 4.What is the complement of 17° (in degrees)?
  5. 5.What is the supplement of 62° (in degrees)?
  6. 6.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 18° and 72° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its alternate interior angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its alternate interior angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 121°. What is the angle vertically opposite to it (in degrees)?
  11. 11.What is the complement of 51° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 117°. What is its corresponding angle (in degrees)?
  13. 13.Are 79° and 121° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  14. 14.What is the supplement of 121° (in degrees)?
  15. 15.What is the complement of 64° (in degrees)?
  16. 16.What is the complement of 78° (in degrees)?
  17. 17.What is the supplement of 92° (in degrees)?
  18. 18.What is the complement of 26° (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  20. 20.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 44°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.What is the complement of 28° (in degrees)?
  23. 23.What is the complement of 37° (in degrees)?
  24. 24.Are 50° and 139° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 45°. What is its corresponding angle (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 129°. What is its corresponding angle (in degrees)?
  28. 28.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  29. 29.Are 35° and 26° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.What is the complement of 19° (in degrees)?
  31. 31.Two angles are supplementary. One is 64° 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 154°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 72°. What is its alternate interior angle (in degrees)?
  34. 34.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the supplement of 19° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its alternate interior angle (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 116°. What is its alternate interior angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 81°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 38°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 38°. What is its corresponding angle (in degrees)?

Answer key

  1. 27
  2. 52
  3. 37
  4. 73
  5. 118
  6. 91
  7. Complementary
  8. 39
  9. 34
  10. 121
  11. 39
  12. 117
  13. Neither
  14. 59
  15. 26
  16. 12
  17. 88
  18. 64
  19. 75
  20. 75
  21. 136
  22. 62
  23. 53
  24. Neither
  25. 52
  26. 45
  27. 129
  28. 136
  29. Neither
  30. 71
  31. 122
  32. 26
  33. 72
  34. 66
  35. 161
  36. 93
  37. 116
  38. 99
  39. 38
  40. 38

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