← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 50 · 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 94°. What is the angle vertically opposite to it (in degrees)?
  2. 2.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 125°. What is the angle next to it on the same line (in degrees)?
  4. 4.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 45°. What is its corresponding angle (in degrees)?
  6. 6.Are 73° and 17° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  7. 7.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the complement of 64° (in degrees)?
  9. 9.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 51° (in degrees)?
  11. 11.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the supplement of 115° (in degrees)?
  13. 13.What is the complement of 60° (in degrees)?
  14. 14.Are 47° and 70° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 76°. What is its alternate interior angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 30°. What is its alternate interior angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 57°. What is its alternate interior angle (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  19. 19.What is the complement of 38° (in degrees)?
  20. 20.What is the supplement of 58° (in degrees)?
  21. 21.Are 66° and 114° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  22. 22.Are 30° and 60° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  23. 23.What is the complement of 39° (in degrees)?
  24. 24.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  25. 25.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 125° (in degrees)?
  27. 27.What is the complement of 48° (in degrees)?
  28. 28.What is the supplement of 95° (in degrees)?
  29. 29.What is the supplement of 119° (in degrees)?
  30. 30.What is the supplement of 162° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its alternate interior angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
  35. 35.What is the supplement of 10° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 23°. What is the angle next to it on the same line (in degrees)?
  37. 37.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 128°. What is the angle vertically opposite to it (in degrees)?
  39. 39.What is the complement of 68° (in degrees)?
  40. 40.What is the complement of 57° (in degrees)?

Answer key

  1. 94
  2. 59
  3. 55
  4. 54
  5. 45
  6. Complementary
  7. 67
  8. 26
  9. 96
  10. 39
  11. 57
  12. 65
  13. 30
  14. Neither
  15. 76
  16. 30
  17. 57
  18. 76
  19. 52
  20. 122
  21. Supplementary
  22. Complementary
  23. 51
  24. 130
  25. 141
  26. 55
  27. 42
  28. 85
  29. 61
  30. 18
  31. 63
  32. 47
  33. 33
  34. 152
  35. 170
  36. 157
  37. 108
  38. 128
  39. 22
  40. 33

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