← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 74 · 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 78° (in degrees)?
  2. 2.What is the complement of 18° (in degrees)?
  3. 3.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the complement of 25° (in degrees)?
  5. 5.What is the complement of 7° (in degrees)?
  6. 6.Two angles are supplementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 56° and 127° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  8. 8.Are 55° and 166° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  9. 9.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 43°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.What is the complement of 53° (in degrees)?
  12. 12.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  13. 13.Are 13° and 77° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.Two parallel lines are cut by a transversal. One angle is 140°. What is its corresponding angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 41°. What is its alternate interior angle (in degrees)?
  16. 16.What is the supplement of 55° (in degrees)?
  17. 17.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  19. 19.Are 49° and 128° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  20. 20.What is the complement of 6° (in degrees)?
  21. 21.What is the complement of 69° (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 83°. What is the angle next to it on the same line (in degrees)?
  23. 23.What is the complement of 22° (in degrees)?
  24. 24.What is the complement of 28° (in degrees)?
  25. 25.What is the complement of 47° (in degrees)?
  26. 26.What is the complement of 59° (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 27°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Are 10° and 80° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.What is the supplement of 163° (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One angle is 84°. What is its corresponding angle (in degrees)?
  31. 31.Are 59° and 121° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  32. 32.What is the complement of 39° (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 111°. What is its corresponding angle (in degrees)?
  34. 34.What is the supplement of 128° (in degrees)?
  35. 35.Are 61° and 69° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  36. 36.Are 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  37. 37.What is the supplement of 27° (in degrees)?
  38. 38.Two angles are supplementary. One is 140° 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 43°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 125°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 102
  2. 72
  3. 76
  4. 65
  5. 83
  6. 94
  7. Neither
  8. Neither
  9. 52
  10. 137
  11. 37
  12. 79
  13. Complementary
  14. 140
  15. 41
  16. 125
  17. 124
  18. 54
  19. Neither
  20. 84
  21. 21
  22. 97
  23. 68
  24. 62
  25. 43
  26. 31
  27. 27
  28. Complementary
  29. 17
  30. 84
  31. Supplementary
  32. 51
  33. 111
  34. 52
  35. Neither
  36. Supplementary
  37. 153
  38. 160
  39. 137
  40. 125

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