← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 699 · 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 angle is 39°. What is its corresponding angle (in degrees)?
  2. 2.What is the supplement of 141° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 127°. What is the angle vertically opposite to it (in degrees)?
  4. 4.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the complement of 50° (in degrees)?
  6. 6.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 74°. What is its alternate interior angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 53°. 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 132°. What is the angle next to it on the same line (in degrees)?
  10. 10.Are 60° and 30° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  11. 11.Two parallel lines are cut by a transversal. One angle is 81°. What is its corresponding angle (in degrees)?
  12. 12.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the complement of 33° (in degrees)?
  14. 14.What is the complement of 10° (in degrees)?
  15. 15.What is the supplement of 96° (in degrees)?
  16. 16.What is the supplement of 114° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 57°. What is its corresponding angle (in degrees)?
  18. 18.What is the supplement of 137° (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 80°. What is its alternate interior angle (in degrees)?
  20. 20.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 89°. What is its corresponding angle (in degrees)?
  22. 22.What is the complement of 28° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 115°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 14° and 166° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  25. 25.What is the complement of 16° (in degrees)?
  26. 26.What is the complement of 47° (in degrees)?
  27. 27.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)?
  28. 28.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
  29. 29.What is the complement of 71° (in degrees)?
  30. 30.What is the supplement of 129° (in degrees)?
  31. 31.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 18° (in degrees)?
  34. 34.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  35. 35.Are 56° and 34° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  36. 36.Are 59° and 121° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  37. 37.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  38. 38.Are 20° and 70° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  39. 39.What is the complement of 21° (in degrees)?
  40. 40.Two angles are supplementary. One is 98° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 39
  2. 39
  3. 127
  4. 99
  5. 40
  6. 141
  7. 74
  8. 127
  9. 48
  10. Complementary
  11. 81
  12. 73
  13. 57
  14. 80
  15. 84
  16. 66
  17. 57
  18. 43
  19. 80
  20. 46
  21. 89
  22. 62
  23. 115
  24. Supplementary
  25. 74
  26. 43
  27. 55
  28. 36
  29. 19
  30. 51
  31. 103
  32. 96
  33. 162
  34. 108
  35. Complementary
  36. Supplementary
  37. 52
  38. Complementary
  39. 69
  40. 139

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