← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 925 · 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 29° and 61° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.Two angles are supplementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the complement of 14° (in degrees)?
  5. 5.What is the complement of 19° (in degrees)?
  6. 6.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 76°. What is the angle vertically opposite to it (in degrees)?
  8. 8.What is the supplement of 19° (in degrees)?
  9. 9.What is the complement of 45° (in degrees)?
  10. 10.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 71°. What is its alternate interior angle (in degrees)?
  12. 12.Are 70° and 24° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  13. 13.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 67°. What is its corresponding angle (in degrees)?
  16. 16.Are 45° and 135° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.What is the complement of 32° (in degrees)?
  18. 18.What is the complement of 8° (in degrees)?
  19. 19.What is the supplement of 26° (in degrees)?
  20. 20.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 45° and 144° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Are 71° and 19° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.What is the complement of 58° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 78°. What is its alternate interior angle (in degrees)?
  25. 25.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the complement of 36° (in degrees)?
  27. 27.Are 80° and 158° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its alternate interior angle (in degrees)?
  29. 29.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the complement of 38° (in degrees)?
  32. 32.What is the supplement of 118° (in degrees)?
  33. 33.Are 51° and 53° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.What is the supplement of 121° (in degrees)?
  35. 35.What is the supplement of 172° (in degrees)?
  36. 36.What is the complement of 81° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 108°. What is the angle vertically opposite to it (in degrees)?
  38. 38.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the complement of 41° (in degrees)?
  40. 40.What is the supplement of 102° (in degrees)?

Answer key

  1. Complementary
  2. 107
  3. 47
  4. 76
  5. 71
  6. 76
  7. 76
  8. 161
  9. 45
  10. 51
  11. 71
  12. Neither
  13. 79
  14. 46
  15. 67
  16. Supplementary
  17. 58
  18. 82
  19. 154
  20. 95
  21. Neither
  22. Complementary
  23. 32
  24. 78
  25. 54
  26. 54
  27. Neither
  28. 34
  29. 59
  30. 93
  31. 52
  32. 62
  33. Neither
  34. 59
  35. 8
  36. 9
  37. 108
  38. 56
  39. 49
  40. 78

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