← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 17 · 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.What is the supplement of 29° (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 130°. What is the angle vertically opposite to it (in degrees)?
  3. 3.What is the supplement of 53° (in degrees)?
  4. 4.What is the supplement of 11° (in degrees)?
  5. 5.What is the supplement of 52° (in degrees)?
  6. 6.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)?
  7. 7.What is the supplement of 30° (in degrees)?
  8. 8.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the supplement of 119° (in degrees)?
  10. 10.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
  12. 12.Are 16° and 64° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  13. 13.Are 23° and 67° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.What is the complement of 55° (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 33°. What is its alternate interior angle (in degrees)?
  16. 16.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 78°. What is its corresponding angle (in degrees)?
  18. 18.What is the complement of 9° (in degrees)?
  19. 19.What is the complement of 23° (in degrees)?
  20. 20.What is the supplement of 147° (in degrees)?
  21. 21.Are 57° and 33° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  22. 22.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 125°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.What is the supplement of 65° (in degrees)?
  25. 25.What is the complement of 25° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 38°. What is its corresponding angle (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 45°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  29. 29.What is the complement of 10° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 143°. What is the angle next to it on the same line (in degrees)?
  31. 31.What is the complement of 47° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 100°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 99°. What is the angle next to it on the same line (in degrees)?
  35. 35.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 101°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the complement of 30° (in degrees)?
  39. 39.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 31°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 151
  2. 130
  3. 127
  4. 169
  5. 128
  6. 141
  7. 150
  8. 132
  9. 61
  10. 149
  11. 49
  12. Neither
  13. Complementary
  14. 35
  15. 33
  16. 63
  17. 78
  18. 81
  19. 67
  20. 33
  21. Complementary
  22. 101
  23. 55
  24. 115
  25. 65
  26. 38
  27. 45
  28. 72
  29. 80
  30. 37
  31. 43
  32. 100
  33. 104
  34. 81
  35. 138
  36. 101
  37. 70
  38. 60
  39. 57
  40. 31

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