← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 802 · 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.Are 13° and 77° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.Are 75° and 105° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  3. 3.Are 11° and 38° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.What is the complement of 51° (in degrees)?
  5. 5.What is the supplement of 117° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 85°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One angle is 98°. What is its corresponding angle (in degrees)?
  8. 8.Are 62° and 18° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  9. 9.What is the complement of 21° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 144°. What is its corresponding angle (in degrees)?
  11. 11.What is the supplement of 102° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 68° (in degrees)?
  14. 14.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the supplement of 84° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 54°. What is its corresponding angle (in degrees)?
  17. 17.What is the supplement of 42° (in degrees)?
  18. 18.What is the supplement of 49° (in degrees)?
  19. 19.What is the supplement of 12° (in degrees)?
  20. 20.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 70°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the supplement of 122° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 88°. What is its alternate interior angle (in degrees)?
  24. 24.Are 41° and 139° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  25. 25.Are 65° and 115° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.What is the supplement of 171° (in degrees)?
  27. 27.What is the supplement of 127° (in degrees)?
  28. 28.What is the supplement of 16° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 100°. What is the angle next to it on the same line (in degrees)?
  30. 30.What is the supplement of 62° (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 82°. What is the angle vertically opposite to it (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 66°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  34. 34.Are 78° and 15° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  35. 35.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  36. 36.What is the complement of 56° (in degrees)?
  37. 37.Two angles are complementary. One is 20° 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 50°. What is the angle vertically opposite to it (in degrees)?
  39. 39.What is the complement of 31° (in degrees)?
  40. 40.What is the complement of 53° (in degrees)?

Answer key

  1. Complementary
  2. Supplementary
  3. Neither
  4. 39
  5. 63
  6. 85
  7. 98
  8. Neither
  9. 69
  10. 144
  11. 78
  12. 24
  13. 22
  14. 49
  15. 96
  16. 54
  17. 138
  18. 131
  19. 168
  20. 157
  21. 110
  22. 58
  23. 88
  24. Supplementary
  25. Supplementary
  26. 9
  27. 53
  28. 164
  29. 80
  30. 118
  31. 82
  32. 114
  33. 68
  34. Neither
  35. 74
  36. 34
  37. 55
  38. 50
  39. 59
  40. 37

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