← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 433 · 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 68° (in degrees)?
  2. 2.Are 60° and 21° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  3. 3.What is the complement of 53° (in degrees)?
  4. 4.What is the supplement of 24° (in degrees)?
  5. 5.What is the supplement of 80° (in degrees)?
  6. 6.What is the complement of 38° (in degrees)?
  7. 7.What is the supplement of 150° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 107°. What is the angle next to it on the same line (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 65°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 157°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Are 46° and 70° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  12. 12.Two parallel lines are cut by a transversal. One angle is 105°. What is its corresponding angle (in degrees)?
  13. 13.Are 41° and 139° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 125°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its other interior angle on the same side of the transversal (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 64°. What is the angle vertically opposite to it (in degrees)?
  19. 19.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 73°. What is the angle next to it on the same line (in degrees)?
  21. 21.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its other interior angle on the same side of the transversal (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 31°. What is its alternate interior angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 106°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
  28. 28.What is the supplement of 21° (in degrees)?
  29. 29.What is the supplement of 12° (in degrees)?
  30. 30.Two angles are supplementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the complement of 49° (in degrees)?
  32. 32.Are 49° and 41° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  33. 33.What is the complement of 39° (in degrees)?
  34. 34.What is the complement of 28° (in degrees)?
  35. 35.What is the supplement of 157° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the complement of 60° (in degrees)?
  38. 38.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)?
  39. 39.Two straight lines cross each other. One of the angles formed is 55°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the complement of 21° (in degrees)?

Answer key

  1. 22
  2. Neither
  3. 37
  4. 156
  5. 100
  6. 52
  7. 30
  8. 73
  9. 65
  10. 157
  11. Neither
  12. 105
  13. Supplementary
  14. 120
  15. 125
  16. 58
  17. 132
  18. 64
  19. 52
  20. 107
  21. 59
  22. 70
  23. 142
  24. 44
  25. 31
  26. 106
  27. 114
  28. 159
  29. 168
  30. 111
  31. 41
  32. Complementary
  33. 51
  34. 62
  35. 23
  36. 47
  37. 30
  38. 40
  39. 125
  40. 69

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