← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 387 · 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 156° (in degrees)?
  2. 2.What is the complement of 71° (in degrees)?
  3. 3.What is the supplement of 26° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One angle is 96°. What is its corresponding angle (in degrees)?
  5. 5.What is the supplement of 112° (in degrees)?
  6. 6.What is the supplement of 131° (in degrees)?
  7. 7.Are 71° and 150° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.Are 28° and 62° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  9. 9.What is the supplement of 32° (in degrees)?
  10. 10.Are 78° and 102° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  11. 11.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the complement of 16° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Are 57° and 33° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.What is the supplement of 173° (in degrees)?
  17. 17.What is the complement of 36° (in degrees)?
  18. 18.What is the complement of 50° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its alternate interior angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 132°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.Are 52° and 162° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.What is the complement of 6° (in degrees)?
  24. 24.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  25. 25.What is the complement of 17° (in degrees)?
  26. 26.Two angles are complementary. One is 6° 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 110°. What is its alternate interior angle (in degrees)?
  28. 28.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
  30. 30.What is the supplement of 122° (in degrees)?
  31. 31.What is the supplement of 20° (in degrees)?
  32. 32.What is the supplement of 34° (in degrees)?
  33. 33.What is the supplement of 164° (in degrees)?
  34. 34.Are 34° and 56° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  35. 35.Are 65° and 25° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  36. 36.What is the complement of 80° (in degrees)?
  37. 37.Are 29° and 35° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  38. 38.Two parallel lines are cut by a transversal. One angle is 47°. What is its corresponding angle (in degrees)?
  39. 39.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 151°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 24
  2. 19
  3. 154
  4. 96
  5. 68
  6. 49
  7. Neither
  8. Complementary
  9. 148
  10. Supplementary
  11. 52
  12. 72
  13. 74
  14. 59
  15. Complementary
  16. 7
  17. 54
  18. 40
  19. 141
  20. 48
  21. 48
  22. Neither
  23. 84
  24. 56
  25. 73
  26. 48
  27. 110
  28. 104
  29. 139
  30. 58
  31. 160
  32. 146
  33. 16
  34. Complementary
  35. Complementary
  36. 10
  37. Neither
  38. 47
  39. 135
  40. 151

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