← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 658 · 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 36° and 9° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Two straight lines cross each other. One of the angles formed is 79°. What is the angle vertically opposite to it (in degrees)?
  3. 3.Are 38° and 142° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  4. 4.Are 26° and 64° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  5. 5.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two angles are supplementary. One is 108° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the complement of 79° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 111°. What is the angle next to it on the same line (in degrees)?
  10. 10.What is the supplement of 94° (in degrees)?
  11. 11.What is the supplement of 108° (in degrees)?
  12. 12.What is the complement of 26° (in degrees)?
  13. 13.What is the complement of 53° (in degrees)?
  14. 14.Are 42° and 163° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.Are 31° and 72° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  16. 16.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  17. 17.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 122°. What is its alternate interior angle (in degrees)?
  19. 19.What is the complement of 72° (in degrees)?
  20. 20.Are 55° and 109° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  21. 21.Two parallel lines are cut by a transversal. One angle is 31°. What is its corresponding angle (in degrees)?
  22. 22.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 29°. What is the angle next to it on the same line (in degrees)?
  25. 25.Are 38° and 98° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  26. 26.What is the complement of 49° (in degrees)?
  27. 27.Two angles are supplementary. One is 88° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the complement of 50° (in degrees)?
  29. 29.What is the supplement of 113° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
  31. 31.What is the complement of 77° (in degrees)?
  32. 32.Are 76° and 14° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  33. 33.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 47°. What is the angle next to it on the same line (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 80°. What is the angle vertically opposite to it (in degrees)?
  36. 36.What is the complement of 12° (in degrees)?
  37. 37.What is the supplement of 125° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 135°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.What is the supplement of 38° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its alternate interior angle (in degrees)?

Answer key

  1. Neither
  2. 79
  3. Supplementary
  4. Complementary
  5. 41
  6. 46
  7. 144
  8. 11
  9. 69
  10. 86
  11. 72
  12. 64
  13. 37
  14. Neither
  15. Neither
  16. 92
  17. 108
  18. 122
  19. 18
  20. Neither
  21. 31
  22. 99
  23. 86
  24. 151
  25. Neither
  26. 41
  27. 134
  28. 40
  29. 67
  30. 111
  31. 13
  32. Complementary
  33. 73
  34. 133
  35. 80
  36. 78
  37. 55
  38. 45
  39. 142
  40. 147

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