← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 305 · 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 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  2. 2.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One angle is 64°. What is its corresponding angle (in degrees)?
  4. 4.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 116°. What is its alternate interior angle (in degrees)?
  6. 6.What is the supplement of 54° (in degrees)?
  7. 7.What is the supplement of 58° (in degrees)?
  8. 8.Two angles are supplementary. One is 82° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 68° (in degrees)?
  10. 10.What is the complement of 34° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 129°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 14° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 83°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 45°. What is its other interior angle on the same side of the transversal (in degrees)?
  16. 16.What is the complement of 45° (in degrees)?
  17. 17.What is the supplement of 144° (in degrees)?
  18. 18.Are 51° and 129° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.Two angles are supplementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the supplement of 103° (in degrees)?
  21. 21.What is the complement of 30° (in degrees)?
  22. 22.What is the complement of 31° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 130°. What is its alternate interior angle (in degrees)?
  24. 24.What is the supplement of 94° (in degrees)?
  25. 25.Are 41° and 49° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.Two parallel lines are cut by a transversal. One angle is 41°. What is its corresponding angle (in degrees)?
  27. 27.What is the complement of 51° (in degrees)?
  28. 28.What is the supplement of 89° (in degrees)?
  29. 29.Two angles are supplementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two angles are supplementary. One is 100° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 134°. What is its alternate interior angle (in degrees)?
  33. 33.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 31°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the supplement of 36° (in degrees)?
  38. 38.Are 40° and 70° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  39. 39.Two straight lines cross each other. One of the angles formed is 27°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. Supplementary
  2. 20
  3. 64
  4. 62
  5. 116
  6. 126
  7. 122
  8. 131
  9. 22
  10. 56
  11. 76
  12. 129
  13. 76
  14. 97
  15. 135
  16. 45
  17. 36
  18. Supplementary
  19. 98
  20. 77
  21. 60
  22. 59
  23. 130
  24. 86
  25. Complementary
  26. 41
  27. 39
  28. 91
  29. 110
  30. 151
  31. 140
  32. 134
  33. 102
  34. 78
  35. 31
  36. 100
  37. 144
  38. Neither
  39. 153
  40. 112

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