← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 614 · 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 4° more than the other. What is the bigger angle (in degrees)?
  2. 2.Are 76° and 14° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  3. 3.Two angles are supplementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the complement of 24° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 85°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 95°. What is its alternate interior angle (in degrees)?
  7. 7.What is the complement of 23° (in degrees)?
  8. 8.Are 41° and 49° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its other interior angle on the same side of the transversal (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 66°. What is its alternate interior angle (in degrees)?
  11. 11.Are 58° and 122° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the supplement of 70° (in degrees)?
  14. 14.What is the supplement of 12° (in degrees)?
  15. 15.What is the supplement of 118° (in degrees)?
  16. 16.What is the complement of 83° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 108°. What is its corresponding angle (in degrees)?
  18. 18.What is the complement of 46° (in degrees)?
  19. 19.What is the supplement of 154° (in degrees)?
  20. 20.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the complement of 15° (in degrees)?
  22. 22.What is the complement of 27° (in degrees)?
  23. 23.What is the complement of 62° (in degrees)?
  24. 24.What is the complement of 67° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 29°. What is the angle vertically opposite to it (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 40°. What is the angle vertically opposite to it (in degrees)?
  27. 27.What is the supplement of 168° (in degrees)?
  28. 28.Are 69° and 21° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Two angles are supplementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  32. 32.What is the complement of 54° (in degrees)?
  33. 33.What is the supplement of 47° (in degrees)?
  34. 34.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)?
  35. 35.What is the complement of 84° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its other interior angle on the same side of the transversal (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 134°. What is its other interior angle on the same side of the transversal (in degrees)?
  38. 38.What is the complement of 29° (in degrees)?
  39. 39.Two angles are supplementary. One is 120° 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 107°. What is its other interior angle on the same side of the transversal (in degrees)?

Answer key

  1. 47
  2. Complementary
  3. 119
  4. 66
  5. 85
  6. 95
  7. 67
  8. Complementary
  9. 116
  10. 66
  11. Supplementary
  12. 108
  13. 110
  14. 168
  15. 62
  16. 7
  17. 108
  18. 44
  19. 26
  20. 124
  21. 75
  22. 63
  23. 28
  24. 23
  25. 29
  26. 40
  27. 12
  28. Complementary
  29. 43
  30. 117
  31. 49
  32. 36
  33. 133
  34. 64
  35. 6
  36. 53
  37. 46
  38. 61
  39. 150
  40. 73

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