← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 321 · 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 141°. What is its alternate interior angle (in degrees)?
  2. 2.What is the supplement of 147° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its alternate interior angle (in degrees)?
  4. 4.What is the complement of 68° (in degrees)?
  5. 5.What is the supplement of 48° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its other interior angle on the same side of the transversal (in degrees)?
  7. 7.Are 27° and 63° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  8. 8.What is the supplement of 126° (in degrees)?
  9. 9.What is the complement of 24° (in degrees)?
  10. 10.What is the supplement of 30° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 107°. What is its corresponding angle (in degrees)?
  12. 12.Are 70° and 110° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  13. 13.Are 49° and 155° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  15. 15.Are 67° and 113° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.Are 54° and 36° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  17. 17.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  19. 19.Are 27° and 153° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.What is the complement of 22° (in degrees)?
  21. 21.Are 36° and 15° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 106°. What is its alternate interior angle (in degrees)?
  23. 23.What is the supplement of 46° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 52°. What is the angle next to it on the same line (in degrees)?
  25. 25.What is the complement of 39° (in degrees)?
  26. 26.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 47°. What is its corresponding angle (in degrees)?
  28. 28.What is the complement of 73° (in degrees)?
  29. 29.What is the complement of 16° (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its alternate interior angle (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 80°. What is its alternate interior angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 54°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 79°. What is its alternate interior angle (in degrees)?
  35. 35.Are 77° and 103° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  36. 36.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 25°. What is the angle vertically opposite to it (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 90°. What is the angle next to it on the same line (in degrees)?
  39. 39.What is the complement of 44° (in degrees)?
  40. 40.Are 34° and 146° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary

Answer key

  1. 141
  2. 33
  3. 121
  4. 22
  5. 132
  6. 148
  7. Complementary
  8. 54
  9. 66
  10. 150
  11. 107
  12. Supplementary
  13. Neither
  14. 65
  15. Supplementary
  16. Complementary
  17. 101
  18. 136
  19. Supplementary
  20. 68
  21. Neither
  22. 106
  23. 134
  24. 128
  25. 51
  26. 66
  27. 47
  28. 17
  29. 74
  30. 62
  31. 80
  32. 49
  33. 54
  34. 79
  35. Supplementary
  36. 59
  37. 25
  38. 90
  39. 46
  40. Supplementary

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