← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 164 · 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.Are 26° and 154° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.What is the complement of 54° (in degrees)?
  3. 3.Are 19° and 72° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  4. 4.What is the complement of 79° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 82°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 42°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.What is the supplement of 61° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 40°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Are 70° and 119° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Two straight lines cross each other. One of the angles formed is 149°. What is the angle next to it on the same line (in degrees)?
  13. 13.Two angles are supplementary. One is 120° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 92°. What is its corresponding angle (in degrees)?
  15. 15.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 85°. What is its alternate interior angle (in degrees)?
  17. 17.What is the supplement of 28° (in degrees)?
  18. 18.What is the complement of 74° (in degrees)?
  19. 19.What is the complement of 21° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 147°. What is the angle vertically opposite to it (in degrees)?
  21. 21.What is the supplement of 153° (in degrees)?
  22. 22.What is the supplement of 53° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 96°. What is the angle vertically opposite to it (in degrees)?
  24. 24.What is the supplement of 136° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 62°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the supplement of 171° (in degrees)?
  27. 27.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  28. 28.Are 41° and 49° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  29. 29.Two straight lines cross each other. One of the angles formed is 59°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Are 13° and 77° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.Two straight lines cross each other. One of the angles formed is 23°. What is the angle next to it on the same line (in degrees)?
  32. 32.Are 60° and 120° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  33. 33.Are 37° and 27° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 55°. What is its other interior angle on the same side of the transversal (in degrees)?
  35. 35.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 79°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the complement of 8° (in degrees)?
  38. 38.What is the complement of 16° (in degrees)?
  39. 39.What is the complement of 15° (in degrees)?
  40. 40.Are 51° and 129° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary

Answer key

  1. Supplementary
  2. 36
  3. Neither
  4. 11
  5. 82
  6. 114
  7. 80
  8. 138
  9. 119
  10. 40
  11. Neither
  12. 31
  13. 150
  14. 92
  15. 54
  16. 85
  17. 152
  18. 16
  19. 69
  20. 147
  21. 27
  22. 127
  23. 96
  24. 44
  25. 118
  26. 9
  27. 153
  28. Complementary
  29. 59
  30. Complementary
  31. 157
  32. Supplementary
  33. Neither
  34. 125
  35. 121
  36. 79
  37. 82
  38. 74
  39. 75
  40. Supplementary

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