← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 110 · 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 29° (in degrees)?
  2. 2.What is the supplement of 158° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 96°. What is the angle vertically opposite to it (in degrees)?
  4. 4.What is the complement of 41° (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its alternate interior angle (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 53°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its alternate interior angle (in degrees)?
  8. 8.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 15° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 144°. What is its corresponding angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 69°. What is the angle next to it on the same line (in degrees)?
  12. 12.What is the complement of 81° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 95°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its alternate interior angle (in degrees)?
  15. 15.Are 28° and 152° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  16. 16.Two straight lines cross each other. One of the angles formed is 87°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Are 35° and 149° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  18. 18.Two straight lines cross each other. One of the angles formed is 54°. What is the angle vertically opposite to it (in degrees)?
  19. 19.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)?
  20. 20.Are 15° and 165° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  21. 21.What is the supplement of 37° (in degrees)?
  22. 22.What is the complement of 25° (in degrees)?
  23. 23.Are 60° and 30° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  24. 24.What is the complement of 32° (in degrees)?
  25. 25.What is the supplement of 40° (in degrees)?
  26. 26.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the complement of 52° (in degrees)?
  29. 29.What is the complement of 27° (in degrees)?
  30. 30.What is the complement of 33° (in degrees)?
  31. 31.What is the supplement of 24° (in degrees)?
  32. 32.Are 49° and 41° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  33. 33.What is the supplement of 23° (in degrees)?
  34. 34.What is the complement of 66° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 116°. What is the angle next to it on the same line (in degrees)?
  36. 36.Are 76° and 98° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  37. 37.What is the supplement of 86° (in degrees)?
  38. 38.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the supplement of 48° (in degrees)?

Answer key

  1. 61
  2. 22
  3. 96
  4. 49
  5. 109
  6. 53
  7. 150
  8. 58
  9. 75
  10. 144
  11. 111
  12. 9
  13. 95
  14. 63
  15. Supplementary
  16. 87
  17. Neither
  18. 54
  19. 30
  20. Supplementary
  21. 143
  22. 65
  23. Complementary
  24. 58
  25. 140
  26. 124
  27. 70
  28. 38
  29. 63
  30. 57
  31. 156
  32. Complementary
  33. 157
  34. 24
  35. 64
  36. Neither
  37. 94
  38. 51
  39. 65
  40. 132

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