← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 131 · 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 angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  2. 2.What is the supplement of 94° (in degrees)?
  3. 3.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 168° (in degrees)?
  5. 5.What is the supplement of 19° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 51°. What is the angle next to it on the same line (in degrees)?
  7. 7.What is the complement of 23° (in degrees)?
  8. 8.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 42°. What is the angle next to it on the same line (in degrees)?
  11. 11.What is the complement of 5° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 68°. What is its corresponding angle (in degrees)?
  13. 13.Are 17° and 73° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  14. 14.What is the supplement of 68° (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 87°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its alternate interior angle (in degrees)?
  19. 19.What is the complement of 60° (in degrees)?
  20. 20.What is the supplement of 171° (in degrees)?
  21. 21.Two angles are supplementary. One is 78° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 142°. What is the angle vertically opposite to it (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 87°. What is its corresponding angle (in degrees)?
  24. 24.What is the complement of 68° (in degrees)?
  25. 25.What is the complement of 43° (in degrees)?
  26. 26.Are 38° and 69° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  27. 27.What is the supplement of 81° (in degrees)?
  28. 28.What is the supplement of 45° (in degrees)?
  29. 29.What is the supplement of 163° (in degrees)?
  30. 30.What is the supplement of 165° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 31°. What is its corresponding angle (in degrees)?
  32. 32.What is the supplement of 156° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 91°. What is the angle vertically opposite to it (in degrees)?
  34. 34.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)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 40°. What is its alternate interior angle (in degrees)?
  36. 36.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 127°. What is its corresponding angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 141°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.What is the supplement of 142° (in degrees)?
  40. 40.What is the supplement of 169° (in degrees)?

Answer key

  1. 93
  2. 86
  3. 105
  4. 12
  5. 161
  6. 129
  7. 67
  8. 56
  9. 54
  10. 138
  11. 85
  12. 68
  13. Complementary
  14. 112
  15. 87
  16. 49
  17. 20
  18. 61
  19. 30
  20. 9
  21. 129
  22. 142
  23. 87
  24. 22
  25. 47
  26. Neither
  27. 99
  28. 135
  29. 17
  30. 15
  31. 31
  32. 24
  33. 91
  34. 93
  35. 40
  36. 143
  37. 127
  38. 39
  39. 38
  40. 11

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