← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 381 · 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.What is the supplement of 15° (in degrees)?
  2. 2.Are 15° and 75° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 26°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 85°. What is the angle vertically opposite to it (in degrees)?
  7. 7.What is the supplement of 45° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 98°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.What is the complement of 45° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
  11. 11.What is the supplement of 108° (in degrees)?
  12. 12.What is the complement of 42° (in degrees)?
  13. 13.Are 27° and 63° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  14. 14.What is the supplement of 6° (in degrees)?
  15. 15.Two angles are supplementary. One is 132° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
  17. 17.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 94°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.What is the supplement of 113° (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 137°. What is its corresponding angle (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 27°. What is the angle vertically opposite to it (in degrees)?
  23. 23.What is the complement of 48° (in degrees)?
  24. 24.What is the supplement of 123° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 25°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the complement of 70° (in degrees)?
  27. 27.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)?
  28. 28.Two straight lines cross each other. One of the angles formed is 135°. What is the angle vertically opposite to it (in degrees)?
  29. 29.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the complement of 9° (in degrees)?
  31. 31.Are 21° and 69° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  32. 32.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)?
  33. 33.Two straight lines cross each other. One of the angles formed is 149°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two angles are supplementary. One is 76° 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 41°. What is the angle vertically opposite to it (in degrees)?
  36. 36.What is the complement of 13° (in degrees)?
  37. 37.What is the complement of 54° (in degrees)?
  38. 38.Two angles are supplementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 24°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 165
  2. Complementary
  3. 75
  4. 136
  5. 26
  6. 85
  7. 135
  8. 82
  9. 45
  10. 111
  11. 72
  12. 48
  13. Complementary
  14. 174
  15. 156
  16. 83
  17. 116
  18. 147
  19. 86
  20. 67
  21. 137
  22. 27
  23. 42
  24. 57
  25. 155
  26. 20
  27. 119
  28. 135
  29. 141
  30. 81
  31. Complementary
  32. 61
  33. 31
  34. 128
  35. 41
  36. 77
  37. 36
  38. 115
  39. 156
  40. 65

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