← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 607 · 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 supplement of 110° (in degrees)?
  3. 3.What is the supplement of 7° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its alternate interior angle (in degrees)?
  5. 5.Two angles are supplementary. One is 130° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 51° and 116° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  8. 8.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its alternate interior angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 74°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 98°. What is the angle vertically opposite to it (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 123°. What is its corresponding angle (in degrees)?
  13. 13.Are 69° and 21° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  14. 14.Two angles are supplementary. One is 86° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 110°. What is its alternate interior angle (in degrees)?
  16. 16.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  18. 18.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)?
  19. 19.What is the supplement of 19° (in degrees)?
  20. 20.What is the complement of 63° (in degrees)?
  21. 21.What is the complement of 79° (in degrees)?
  22. 22.What is the supplement of 10° (in degrees)?
  23. 23.What is the complement of 19° (in degrees)?
  24. 24.What is the complement of 57° (in degrees)?
  25. 25.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  26. 26.Are 59° and 31° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  27. 27.What is the supplement of 114° (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 58°. What is the angle next to it on the same line (in degrees)?
  29. 29.What is the supplement of 66° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 46°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 21°. What is the angle next to it on the same line (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 141°. What is its alternate interior angle (in degrees)?
  33. 33.Are 46° and 44° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  35. 35.What is the supplement of 141° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  37. 37.Are 67° and 113° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  38. 38.Two angles are supplementary. One is 108° more than the other. What is the bigger angle (in degrees)?
  39. 39.What is the complement of 70° (in degrees)?
  40. 40.What is the complement of 55° (in degrees)?

Answer key

  1. 102
  2. 70
  3. 173
  4. 82
  5. 155
  6. 132
  7. Neither
  8. 36
  9. 39
  10. 74
  11. 98
  12. 123
  13. Complementary
  14. 133
  15. 110
  16. 114
  17. 123
  18. 64
  19. 161
  20. 27
  21. 11
  22. 170
  23. 71
  24. 33
  25. 76
  26. Complementary
  27. 66
  28. 122
  29. 114
  30. 46
  31. 159
  32. 141
  33. Complementary
  34. 41
  35. 39
  36. 136
  37. Supplementary
  38. 144
  39. 20
  40. 35

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