← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 637 · 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 135°. What is the angle vertically opposite to it (in degrees)?
  2. 2.What is the supplement of 119° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 114°. What is its corresponding angle (in degrees)?
  4. 4.What is the complement of 12° (in degrees)?
  5. 5.Are 27° and 63° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  6. 6.Two straight lines cross each other. One of the angles formed is 92°. What is the angle next to it on the same line (in degrees)?
  7. 7.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 21°. What is the angle next to it on the same line (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Are 43° and 137° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  11. 11.What is the supplement of 170° (in degrees)?
  12. 12.What is the supplement of 131° (in degrees)?
  13. 13.What is the supplement of 26° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its alternate interior angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 34°. What is its corresponding angle (in degrees)?
  16. 16.What is the supplement of 173° (in degrees)?
  17. 17.Are 23° and 77° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  18. 18.What is the complement of 32° (in degrees)?
  19. 19.What is the supplement of 147° (in degrees)?
  20. 20.What is the complement of 77° (in degrees)?
  21. 21.What is the supplement of 40° (in degrees)?
  22. 22.What is the supplement of 64° (in degrees)?
  23. 23.What is the complement of 31° (in degrees)?
  24. 24.What is the complement of 59° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its other interior angle on the same side of the transversal (in degrees)?
  26. 26.What is the complement of 83° (in degrees)?
  27. 27.Are 13° and 42° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  28. 28.Are 50° and 130° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  29. 29.What is the complement of 15° (in degrees)?
  30. 30.What is the supplement of 138° (in degrees)?
  31. 31.What is the complement of 63° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 57°. What is its corresponding angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 41°. What is its corresponding angle (in degrees)?
  34. 34.What is the complement of 13° (in degrees)?
  35. 35.What is the complement of 57° (in degrees)?
  36. 36.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the complement of 38° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 112°. What is its corresponding angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 84°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the supplement of 27° (in degrees)?

Answer key

  1. 135
  2. 61
  3. 114
  4. 78
  5. Complementary
  6. 88
  7. 51
  8. 159
  9. 43
  10. Supplementary
  11. 10
  12. 49
  13. 154
  14. 32
  15. 34
  16. 7
  17. Neither
  18. 58
  19. 33
  20. 13
  21. 140
  22. 116
  23. 59
  24. 31
  25. 40
  26. 7
  27. Neither
  28. Supplementary
  29. 75
  30. 42
  31. 27
  32. 57
  33. 41
  34. 77
  35. 33
  36. 120
  37. 52
  38. 112
  39. 96
  40. 153

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