← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 112 · 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 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)?
  2. 2.What is the supplement of 138° (in degrees)?
  3. 3.Are 68° and 22° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its alternate interior angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its alternate interior angle (in degrees)?
  6. 6.Are 73° and 15° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  7. 7.What is the complement of 83° (in degrees)?
  8. 8.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?
  9. 9.Are 36° and 144° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  10. 10.Are 28° and 57° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  11. 11.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its alternate interior angle (in degrees)?
  13. 13.What is the complement of 26° (in degrees)?
  14. 14.What is the complement of 34° (in degrees)?
  15. 15.What is the supplement of 169° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  18. 18.What is the complement of 29° (in degrees)?
  19. 19.What is the complement of 59° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 88°. What is the angle next to it on the same line (in degrees)?
  21. 21.What is the complement of 28° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 47°. What is its other interior angle on the same side of the transversal (in degrees)?
  23. 23.What is the complement of 60° (in degrees)?
  24. 24.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  25. 25.Are 11° and 79° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.What is the complement of 46° (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 103°. What is the angle vertically opposite to it (in degrees)?
  28. 28.What is the supplement of 80° (in degrees)?
  29. 29.What is the complement of 70° (in degrees)?
  30. 30.Are 26° and 154° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  31. 31.Two parallel lines are cut by a transversal. One angle is 86°. What is its corresponding angle (in degrees)?
  32. 32.Two angles are supplementary. One is 116° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 166° (in degrees)?
  34. 34.Are 27° and 153° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 103°. What is its alternate interior angle (in degrees)?
  36. 36.Are 71° and 109° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  37. 37.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 74°. What is its corresponding angle (in degrees)?
  39. 39.Are 34° and 23° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  40. 40.What is the complement of 50° (in degrees)?

Answer key

  1. 26
  2. 42
  3. Complementary
  4. 64
  5. 77
  6. Neither
  7. 7
  8. 135
  9. Supplementary
  10. Neither
  11. 62
  12. 89
  13. 64
  14. 56
  15. 11
  16. 40
  17. 70
  18. 61
  19. 31
  20. 92
  21. 62
  22. 133
  23. 30
  24. 136
  25. Complementary
  26. 44
  27. 103
  28. 100
  29. 20
  30. Supplementary
  31. 86
  32. 148
  33. 14
  34. Supplementary
  35. 103
  36. Supplementary
  37. 77
  38. 74
  39. Neither
  40. 40

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