← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 919 · 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 parallel lines are cut by a transversal. One interior angle is 149°. What is its alternate interior angle (in degrees)?
  2. 2.Are 80° and 10° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  3. 3.Two parallel lines are cut by a transversal. One angle is 113°. What is its corresponding angle (in degrees)?
  4. 4.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the supplement of 61° (in degrees)?
  6. 6.What is the supplement of 37° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.What is the supplement of 20° (in degrees)?
  9. 9.Two angles are supplementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 17° (in degrees)?
  11. 11.What is the complement of 59° (in degrees)?
  12. 12.What is the supplement of 117° (in degrees)?
  13. 13.Are 45° and 69° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  14. 14.What is the supplement of 45° (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its other interior angle on the same side of the transversal (in degrees)?
  16. 16.Are 43° and 137° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  17. 17.Two parallel lines are cut by a transversal. One angle is 100°. What is its corresponding angle (in degrees)?
  18. 18.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 28°. What is the angle vertically opposite to it (in degrees)?
  21. 21.What is the complement of 19° (in degrees)?
  22. 22.Are 30° and 60° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  23. 23.Are 46° and 44° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its other interior angle on the same side of the transversal (in degrees)?
  25. 25.Two angles are supplementary. One is 78° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 79° (in degrees)?
  27. 27.What is the complement of 9° (in degrees)?
  28. 28.What is the supplement of 84° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its other interior angle on the same side of the transversal (in degrees)?
  31. 31.What is the complement of 25° (in degrees)?
  32. 32.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 135°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two angles are supplementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the complement of 16° (in degrees)?
  36. 36.What is the complement of 34° (in degrees)?
  37. 37.Are 29° and 151° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  38. 38.What is the complement of 13° (in degrees)?
  39. 39.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the complement of 5° (in degrees)?

Answer key

  1. 149
  2. Complementary
  3. 113
  4. 62
  5. 119
  6. 143
  7. 119
  8. 160
  9. 106
  10. 73
  11. 31
  12. 63
  13. Neither
  14. 135
  15. 122
  16. Supplementary
  17. 100
  18. 79
  19. 36
  20. 28
  21. 71
  22. Complementary
  23. Complementary
  24. 59
  25. 129
  26. 101
  27. 81
  28. 96
  29. 141
  30. 50
  31. 65
  32. 80
  33. 45
  34. 117
  35. 74
  36. 56
  37. Supplementary
  38. 77
  39. 72
  40. 85

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