← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 259 · 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.Two parallel lines are cut by a transversal. One interior angle is 34°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.Two angles are supplementary. One is 132° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the supplement of 47° (in degrees)?
  4. 4.Two angles are supplementary. One is 58° 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 119°. What is its other interior angle on the same side of the transversal (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 149°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 146°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 21° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 79°. What is its corresponding angle (in degrees)?
  11. 11.What is the complement of 62° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its alternate interior angle (in degrees)?
  13. 13.What is the complement of 18° (in degrees)?
  14. 14.Two angles are supplementary. One is 76° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the supplement of 39° (in degrees)?
  16. 16.Are 53° and 37° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.What is the complement of 47° (in degrees)?
  18. 18.Are 62° and 28° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  19. 19.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  20. 20.What is the supplement of 26° (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 53°. What is its other interior angle on the same side of the transversal (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 134°. What is the angle vertically opposite to it (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its alternate interior angle (in degrees)?
  24. 24.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  25. 25.Are 22° and 98° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  26. 26.Two straight lines cross each other. One of the angles formed is 123°. What is the angle next to it on the same line (in degrees)?
  27. 27.Are 36° and 41° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  28. 28.What is the complement of 79° (in degrees)?
  29. 29.Are 16° and 160° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.What is the complement of 29° (in degrees)?
  31. 31.What is the supplement of 100° (in degrees)?
  32. 32.What is the complement of 35° (in degrees)?
  33. 33.What is the supplement of 102° (in degrees)?
  34. 34.Two angles are complementary. One is 48° 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 29°. What is the angle next to it on the same line (in degrees)?
  36. 36.What is the complement of 11° (in degrees)?
  37. 37.What is the complement of 22° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its alternate interior angle (in degrees)?
  39. 39.Are 68° and 70° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.Are 56° and 34° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. 146
  2. 156
  3. 133
  4. 119
  5. 61
  6. 149
  7. 146
  8. 80
  9. 69
  10. 79
  11. 28
  12. 124
  13. 72
  14. 128
  15. 141
  16. Complementary
  17. 43
  18. Complementary
  19. 77
  20. 154
  21. 127
  22. 134
  23. 60
  24. 76
  25. Neither
  26. 57
  27. Neither
  28. 11
  29. Neither
  30. 61
  31. 80
  32. 55
  33. 78
  34. 69
  35. 151
  36. 79
  37. 68
  38. 127
  39. Neither
  40. Complementary

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