← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 460 · 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 straight lines cross each other. One of the angles formed is 151°. What is the angle vertically opposite to it (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 143°. What is its corresponding angle (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 103°. What is the angle next to it on the same line (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
  5. 5.What is the supplement of 171° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 49°. What is its alternate interior angle (in degrees)?
  7. 7.Are 19° and 63° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  8. 8.Two angles are supplementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 13° (in degrees)?
  10. 10.Are 28° and 62° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  11. 11.What is the complement of 50° (in degrees)?
  12. 12.What is the complement of 42° (in degrees)?
  13. 13.What is the supplement of 63° (in degrees)?
  14. 14.What is the complement of 12° (in degrees)?
  15. 15.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the supplement of 40° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 106°. What is its alternate interior angle (in degrees)?
  18. 18.Are 49° and 41° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.What is the supplement of 167° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 56°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two angles are supplementary. One is 86° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 86°. What is its alternate interior angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 140°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  25. 25.Are 25° and 65° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 80°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its alternate interior angle (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 67°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Are 60° and 30° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Are 61° and 119° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.Two straight lines cross each other. One of the angles formed is 81°. What is the angle next to it on the same line (in degrees)?
  32. 32.Are 28° and 13° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the supplement of 97° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 133°. What is the angle next to it on the same line (in degrees)?
  36. 36.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the supplement of 57° (in degrees)?
  38. 38.Are 57° and 27° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  39. 39.Are 61° and 29° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  40. 40.What is the supplement of 110° (in degrees)?

Answer key

  1. 151
  2. 143
  3. 77
  4. 86
  5. 9
  6. 49
  7. Neither
  8. 125
  9. 77
  10. Complementary
  11. 40
  12. 48
  13. 117
  14. 78
  15. 53
  16. 140
  17. 106
  18. Complementary
  19. 13
  20. 56
  21. 133
  22. 86
  23. 40
  24. 50
  25. Complementary
  26. 100
  27. 150
  28. 67
  29. Complementary
  30. Supplementary
  31. 99
  32. Neither
  33. 66
  34. 83
  35. 47
  36. 91
  37. 123
  38. Neither
  39. Complementary
  40. 70

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