← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 467 · 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 50°. What is the angle vertically opposite to it (in degrees)?
  2. 2.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the complement of 9° (in degrees)?
  4. 4.Two angles are supplementary. One is 140° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the supplement of 104° (in degrees)?
  6. 6.What is the complement of 20° (in degrees)?
  7. 7.What is the complement of 13° (in degrees)?
  8. 8.What is the complement of 17° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 142°. What is its alternate interior angle (in degrees)?
  10. 10.Are 42° and 48° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  11. 11.What is the supplement of 165° (in degrees)?
  12. 12.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 60°. What is the angle next to it on the same line (in degrees)?
  14. 14.What is the complement of 49° (in degrees)?
  15. 15.What is the complement of 18° (in degrees)?
  16. 16.What is the complement of 76° (in degrees)?
  17. 17.Are 69° and 105° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  18. 18.What is the complement of 46° (in degrees)?
  19. 19.Are 69° and 21° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.What is the supplement of 118° (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 132°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the complement of 66° (in degrees)?
  23. 23.What is the supplement of 175° (in degrees)?
  24. 24.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  25. 25.Two angles are supplementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 120°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 135°. What is its corresponding angle (in degrees)?
  28. 28.What is the complement of 28° (in degrees)?
  29. 29.Are 13° and 77° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  30. 30.Are 76° and 142° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.Two straight lines cross each other. One of the angles formed is 132°. What is the angle vertically opposite to it (in degrees)?
  32. 32.What is the complement of 38° (in degrees)?
  33. 33.Are 67° and 23° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  34. 34.What is the supplement of 140° (in degrees)?
  35. 35.Are 52° and 38° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  36. 36.What is the complement of 10° (in degrees)?
  37. 37.Are 27° and 63° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 139°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.What is the supplement of 134° (in degrees)?
  40. 40.Two angles are supplementary. One is 34° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 50
  2. 61
  3. 81
  4. 160
  5. 76
  6. 70
  7. 77
  8. 73
  9. 142
  10. Complementary
  11. 15
  12. 64
  13. 120
  14. 41
  15. 72
  16. 14
  17. Neither
  18. 44
  19. Complementary
  20. 62
  21. 48
  22. 24
  23. 5
  24. 77
  25. 109
  26. 120
  27. 135
  28. 62
  29. Complementary
  30. Neither
  31. 132
  32. 52
  33. Complementary
  34. 40
  35. Complementary
  36. 80
  37. Complementary
  38. 41
  39. 46
  40. 107

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