← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 31 · 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 angle is 145°. What is its corresponding angle (in degrees)?
  2. 2.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the supplement of 103° (in degrees)?
  4. 4.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 19° and 161° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  6. 6.Are 14° and 166° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 87°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 34°. What is its corresponding angle (in degrees)?
  9. 9.What is the supplement of 107° (in degrees)?
  10. 10.What is the supplement of 29° (in degrees)?
  11. 11.Are 26° and 64° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  12. 12.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the supplement of 78° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 53°. What is its alternate interior angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 64°. What is its corresponding angle (in degrees)?
  16. 16.What is the complement of 67° (in degrees)?
  17. 17.What is the supplement of 6° (in degrees)?
  18. 18.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  19. 19.Are 17° and 73° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its alternate interior angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 118°. What is its corresponding angle (in degrees)?
  22. 22.What is the complement of 17° (in degrees)?
  23. 23.What is the supplement of 20° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 21°. What is the angle vertically opposite to it (in degrees)?
  25. 25.What is the complement of 78° (in degrees)?
  26. 26.What is the supplement of 90° (in degrees)?
  27. 27.What is the complement of 10° (in degrees)?
  28. 28.What is the complement of 11° (in degrees)?
  29. 29.What is the complement of 79° (in degrees)?
  30. 30.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)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 105°. What is its corresponding angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 33°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 73°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.What is the complement of 48° (in degrees)?
  35. 35.What is the complement of 30° (in degrees)?
  36. 36.What is the complement of 81° (in degrees)?
  37. 37.Are 55° and 125° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  38. 38.What is the complement of 33° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Are 44° and 136° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary

Answer key

  1. 145
  2. 50
  3. 77
  4. 46
  5. Supplementary
  6. Supplementary
  7. 93
  8. 34
  9. 73
  10. 151
  11. Complementary
  12. 43
  13. 102
  14. 53
  15. 64
  16. 23
  17. 174
  18. 101
  19. Complementary
  20. 82
  21. 118
  22. 73
  23. 160
  24. 21
  25. 12
  26. 90
  27. 80
  28. 79
  29. 11
  30. 69
  31. 105
  32. 33
  33. 107
  34. 42
  35. 60
  36. 9
  37. Supplementary
  38. 57
  39. 47
  40. Supplementary

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