← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 821 · 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 6° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 85°. What is its corresponding angle (in degrees)?
  3. 3.What is the complement of 16° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One angle is 142°. What is its corresponding angle (in degrees)?
  5. 5.What is the supplement of 93° (in degrees)?
  6. 6.What is the complement of 52° (in degrees)?
  7. 7.What is the complement of 13° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
  9. 9.What is the supplement of 134° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 133°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  12. 12.Are 49° and 85° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  13. 13.What is the supplement of 28° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 112°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Are 35° and 13° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  16. 16.Two parallel lines are cut by a transversal. One angle is 94°. What is its corresponding angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 96°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its alternate interior angle (in degrees)?
  20. 20.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the complement of 20° (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 155°. What is the angle vertically opposite to it (in degrees)?
  23. 23.What is the supplement of 27° (in degrees)?
  24. 24.What is the supplement of 53° (in degrees)?
  25. 25.What is the complement of 14° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
  27. 27.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 54° (in degrees)?
  29. 29.Are 14° and 17° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  30. 30.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)?
  31. 31.Two straight lines cross each other. One of the angles formed is 126°. What is the angle vertically opposite to it (in degrees)?
  32. 32.What is the supplement of 147° (in degrees)?
  33. 33.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 51°. What is the angle vertically opposite to it (in degrees)?
  35. 35.What is the supplement of 135° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its alternate interior angle (in degrees)?
  37. 37.Are 67° and 113° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  38. 38.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 108°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the complement of 9° (in degrees)?

Answer key

  1. 174
  2. 85
  3. 74
  4. 142
  5. 87
  6. 38
  7. 77
  8. 111
  9. 46
  10. 47
  11. 43
  12. Neither
  13. 152
  14. 68
  15. Neither
  16. 94
  17. 96
  18. 102
  19. 127
  20. 49
  21. 70
  22. 155
  23. 153
  24. 127
  25. 76
  26. 152
  27. 72
  28. 126
  29. Neither
  30. 30
  31. 126
  32. 33
  33. 66
  34. 51
  35. 45
  36. 62
  37. Supplementary
  38. 48
  39. 72
  40. 81

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