← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 517 · 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.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  2. 2.What is the supplement of 119° (in degrees)?
  3. 3.What is the complement of 9° (in degrees)?
  4. 4.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the supplement of 15° (in degrees)?
  6. 6.Are 77° and 103° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  7. 7.Two straight lines cross each other. One of the angles formed is 85°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 78°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 35°. What is its other interior angle on the same side of the transversal (in degrees)?
  10. 10.What is the supplement of 30° (in degrees)?
  11. 11.What is the supplement of 166° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 157°. What is the angle next to it on the same line (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 136°. What is the angle next to it on the same line (in degrees)?
  14. 14.What is the supplement of 83° (in degrees)?
  15. 15.Two angles are supplementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  17. 17.Are 36° and 92° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  18. 18.Two parallel lines are cut by a transversal. One angle is 135°. What is its corresponding angle (in degrees)?
  19. 19.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 114°. What is its alternate interior angle (in degrees)?
  21. 21.What is the supplement of 156° (in degrees)?
  22. 22.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)?
  23. 23.What is the complement of 24° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  25. 25.What is the supplement of 6° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 137°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the complement of 14° (in degrees)?
  29. 29.What is the complement of 77° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 110°. What is the angle next to it on the same line (in degrees)?
  31. 31.What is the supplement of 64° (in degrees)?
  32. 32.What is the supplement of 44° (in degrees)?
  33. 33.What is the complement of 37° (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 57°. What is the angle next to it on the same line (in degrees)?
  35. 35.What is the complement of 27° (in degrees)?
  36. 36.What is the supplement of 124° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 51°. What is the angle vertically opposite to it (in degrees)?
  38. 38.What is the complement of 12° (in degrees)?
  39. 39.Two angles are supplementary. One is 82° more than the other. What is the bigger angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 73°. What is its alternate interior angle (in degrees)?

Answer key

  1. 56
  2. 61
  3. 81
  4. 149
  5. 165
  6. Supplementary
  7. 85
  8. 78
  9. 145
  10. 150
  11. 14
  12. 23
  13. 44
  14. 97
  15. 123
  16. 75
  17. Neither
  18. 135
  19. 48
  20. 114
  21. 24
  22. 143
  23. 66
  24. 75
  25. 174
  26. 43
  27. 53
  28. 76
  29. 13
  30. 70
  31. 116
  32. 136
  33. 53
  34. 123
  35. 63
  36. 56
  37. 51
  38. 78
  39. 131
  40. 73

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