← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 575 · 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 11° (in degrees)?
  2. 2.Two angles are supplementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  3. 3.Are 35° and 145° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  4. 4.Are 80° and 100° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  5. 5.What is the complement of 75° (in degrees)?
  6. 6.Are 28° and 62° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  7. 7.Two straight lines cross each other. One of the angles formed is 159°. What is the angle next to it on the same line (in degrees)?
  8. 8.What is the complement of 18° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its alternate interior angle (in degrees)?
  10. 10.What is the complement of 29° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 68°. What is the angle next to it on the same line (in degrees)?
  12. 12.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  13. 13.Are 38° and 60° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  14. 14.Are 17° and 81° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  15. 15.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two angles are supplementary. One is 88° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 54°. What is the angle next to it on the same line (in degrees)?
  18. 18.What is the supplement of 132° (in degrees)?
  19. 19.What is the supplement of 33° (in degrees)?
  20. 20.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the complement of 26° (in degrees)?
  22. 22.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  23. 23.Are 44° and 136° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its other interior angle on the same side of the transversal (in degrees)?
  25. 25.What is the complement of 46° (in degrees)?
  26. 26.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 34°. What is the angle next to it on the same line (in degrees)?
  28. 28.Are 50° and 40° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.Are 43° and 47° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Are 80° and 10° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  31. 31.What is the complement of 45° (in degrees)?
  32. 32.What is the supplement of 107° (in degrees)?
  33. 33.What is the complement of 35° (in degrees)?
  34. 34.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the supplement of 65° (in degrees)?
  36. 36.Two angles are supplementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the complement of 37° (in degrees)?
  38. 38.Are 44° and 110° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  39. 39.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  40. 40.What is the supplement of 108° (in degrees)?

Answer key

  1. 169
  2. 110
  3. Supplementary
  4. Supplementary
  5. 15
  6. Complementary
  7. 21
  8. 72
  9. 150
  10. 61
  11. 112
  12. 65
  13. Neither
  14. Neither
  15. 73
  16. 134
  17. 126
  18. 48
  19. 147
  20. 50
  21. 64
  22. 62
  23. Supplementary
  24. 36
  25. 44
  26. 77
  27. 146
  28. Complementary
  29. Complementary
  30. Complementary
  31. 45
  32. 73
  33. 55
  34. 147
  35. 115
  36. 115
  37. 53
  38. Neither
  39. 157
  40. 72

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