← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 695 · 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 144° (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 36°. What is the angle next to it on the same line (in degrees)?
  3. 3.What is the supplement of 67° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 120°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 45°. What is the angle vertically opposite to it (in degrees)?
  6. 6.What is the complement of 10° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 55°. What is the angle vertically opposite to it (in degrees)?
  8. 8.What is the complement of 18° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 67°. What is the angle next to it on the same line (in degrees)?
  11. 11.Are 47° and 133° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  12. 12.What is the complement of 79° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its other interior angle on the same side of the transversal (in degrees)?
  14. 14.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the supplement of 93° (in degrees)?
  16. 16.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  17. 17.What is the supplement of 123° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 52°. What is its alternate interior angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 35°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  23. 23.Are 19° and 161° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  24. 24.What is the complement of 27° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 87°. What is its alternate interior angle (in degrees)?
  26. 26.Are 14° and 166° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  27. 27.What is the supplement of 110° (in degrees)?
  28. 28.Are 76° and 104° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  29. 29.Two parallel lines are cut by a transversal. One angle is 61°. What is its corresponding angle (in degrees)?
  30. 30.Are 21° and 159° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  32. 32.Are 54° and 126° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  33. 33.What is the complement of 21° (in degrees)?
  34. 34.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 66°. What is its corresponding angle (in degrees)?
  37. 37.What is the complement of 13° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 79°. What is its alternate interior angle (in degrees)?
  39. 39.What is the supplement of 63° (in degrees)?
  40. 40.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 36
  2. 144
  3. 113
  4. 60
  5. 45
  6. 80
  7. 55
  8. 72
  9. 76
  10. 113
  11. Supplementary
  12. 11
  13. 117
  14. 108
  15. 87
  16. 77
  17. 57
  18. 52
  19. 145
  20. 62
  21. 80
  22. 67
  23. Supplementary
  24. 63
  25. 87
  26. Supplementary
  27. 70
  28. Supplementary
  29. 61
  30. Supplementary
  31. 54
  32. Supplementary
  33. 69
  34. 78
  35. 123
  36. 66
  37. 77
  38. 79
  39. 117
  40. 122

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