← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 214 · 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 100° (in degrees)?
  2. 2.What is the complement of 39° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  4. 4.What is the supplement of 164° (in degrees)?
  5. 5.What is the complement of 71° (in degrees)?
  6. 6.Are 78° and 12° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  7. 7.What is the complement of 48° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 91°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.What is the supplement of 116° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 147°. What is the angle vertically opposite to it (in degrees)?
  11. 11.What is the complement of 66° (in degrees)?
  12. 12.What is the complement of 52° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
  14. 14.What is the complement of 85° (in degrees)?
  15. 15.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the supplement of 149° (in degrees)?
  17. 17.Are 38° and 87° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  18. 18.What is the complement of 56° (in degrees)?
  19. 19.What is the supplement of 37° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 105°. What is the angle vertically opposite to it (in degrees)?
  21. 21.What is the complement of 21° (in degrees)?
  22. 22.What is the complement of 69° (in degrees)?
  23. 23.What is the complement of 8° (in degrees)?
  24. 24.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  25. 25.What is the supplement of 122° (in degrees)?
  26. 26.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 112°. What is its alternate interior angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 132°. What is its alternate interior angle (in degrees)?
  29. 29.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 37°. What is the angle next to it on the same line (in degrees)?
  31. 31.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 52° (in degrees)?
  34. 34.What is the supplement of 110° (in degrees)?
  35. 35.What is the complement of 79° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 146°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 100°. What is the angle vertically opposite to it (in degrees)?
  38. 38.What is the supplement of 65° (in degrees)?
  39. 39.Are 14° and 128° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  40. 40.What is the supplement of 41° (in degrees)?

Answer key

  1. 80
  2. 51
  3. 60
  4. 16
  5. 19
  6. Complementary
  7. 42
  8. 89
  9. 64
  10. 147
  11. 24
  12. 38
  13. 139
  14. 5
  15. 55
  16. 31
  17. Neither
  18. 34
  19. 143
  20. 105
  21. 69
  22. 21
  23. 82
  24. 64
  25. 58
  26. 143
  27. 112
  28. 132
  29. 53
  30. 143
  31. 50
  32. 59
  33. 128
  34. 70
  35. 11
  36. 146
  37. 100
  38. 115
  39. Neither
  40. 139

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