← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 765 · 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 complement of 54° (in degrees)?
  2. 2.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the supplement of 53° (in degrees)?
  4. 4.What is the complement of 35° (in degrees)?
  5. 5.What is the supplement of 28° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 77°. What is the angle next to it on the same line (in degrees)?
  7. 7.Are 23° and 132° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.Are 14° and 76° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  9. 9.What is the supplement of 175° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  11. 11.What is the supplement of 146° (in degrees)?
  12. 12.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the complement of 14° (in degrees)?
  14. 14.What is the supplement of 13° (in degrees)?
  15. 15.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the supplement of 80° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 125°. What is its alternate interior angle (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 95°. What is the angle vertically opposite to it (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 43° and 156° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  22. 22.Are 27° and 63° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  23. 23.What is the supplement of 75° (in degrees)?
  24. 24.What is the supplement of 131° (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its alternate interior angle (in degrees)?
  26. 26.Are 73° and 48° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  27. 27.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two angles are supplementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 134°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Are 24° and 73° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  31. 31.What is the complement of 7° (in degrees)?
  32. 32.What is the supplement of 174° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 110°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One interior angle is 35°. What is its alternate interior angle (in degrees)?
  35. 35.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 52°. What is its corresponding angle (in degrees)?
  37. 37.What is the complement of 84° (in degrees)?
  38. 38.What is the complement of 60° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its alternate interior angle (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?

Answer key

  1. 36
  2. 55
  3. 127
  4. 55
  5. 152
  6. 103
  7. Neither
  8. Complementary
  9. 5
  10. 53
  11. 34
  12. 56
  13. 76
  14. 167
  15. 77
  16. 100
  17. 125
  18. 95
  19. 132
  20. 70
  21. Neither
  22. Complementary
  23. 105
  24. 49
  25. 48
  26. Neither
  27. 59
  28. 110
  29. 134
  30. Neither
  31. 83
  32. 6
  33. 70
  34. 35
  35. 99
  36. 52
  37. 6
  38. 30
  39. 124
  40. 60

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