← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 323 · 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 16° and 74° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  2. 2.What is the complement of 7° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 70°. What is the angle vertically opposite to it (in degrees)?
  4. 4.Are 18° and 72° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.What is the supplement of 55° (in degrees)?
  6. 6.What is the supplement of 19° (in degrees)?
  7. 7.What is the complement of 73° (in degrees)?
  8. 8.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the supplement of 173° (in degrees)?
  10. 10.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  11. 11.Are 34° and 56° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  12. 12.Are 44° and 46° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  13. 13.What is the supplement of 175° (in degrees)?
  14. 14.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 38°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Are 28° and 152° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.What is the supplement of 39° (in degrees)?
  18. 18.What is the supplement of 26° (in degrees)?
  19. 19.Are 54° and 36° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.What is the supplement of 86° (in degrees)?
  21. 21.What is the complement of 67° (in degrees)?
  22. 22.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  23. 23.Are 70° and 67° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  24. 24.Two straight lines cross each other. One of the angles formed is 46°. What is the angle vertically opposite to it (in degrees)?
  25. 25.What is the complement of 65° (in degrees)?
  26. 26.What is the complement of 27° (in degrees)?
  27. 27.What is the complement of 40° (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its other interior angle on the same side of the transversal (in degrees)?
  29. 29.What is the complement of 38° (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One angle is 136°. What is its corresponding angle (in degrees)?
  31. 31.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 104°. What is its alternate interior angle (in degrees)?
  34. 34.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  35. 35.Are 10° and 80° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  36. 36.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 112°. What is its alternate interior angle (in degrees)?
  39. 39.What is the supplement of 42° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 147°. What is its corresponding angle (in degrees)?

Answer key

  1. Complementary
  2. 83
  3. 70
  4. Complementary
  5. 125
  6. 161
  7. 17
  8. 141
  9. 7
  10. 159
  11. Complementary
  12. Complementary
  13. 5
  14. 58
  15. 38
  16. Supplementary
  17. 141
  18. 154
  19. Complementary
  20. 94
  21. 23
  22. 59
  23. Neither
  24. 46
  25. 25
  26. 63
  27. 50
  28. 119
  29. 52
  30. 136
  31. 126
  32. 43
  33. 104
  34. 50
  35. Complementary
  36. 41
  37. 75
  38. 112
  39. 138
  40. 147

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