← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 917 · 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 140° more than the other. What is the bigger angle (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 98°. What is its alternate interior angle (in degrees)?
  3. 3.Two angles are supplementary. One is 50° 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 105°. What is the angle vertically opposite to it (in degrees)?
  5. 5.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  6. 6.Are 20° and 70° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  7. 7.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 156°. What is the angle next to it on the same line (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 66°. What is its corresponding angle (in degrees)?
  10. 10.Are 22° and 159° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  11. 11.What is the supplement of 73° (in degrees)?
  12. 12.What is the complement of 6° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 56°. What is its alternate interior angle (in degrees)?
  14. 14.Two angles are supplementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two angles are supplementary. One is 116° more than the other. What is the bigger angle (in degrees)?
  16. 16.Are 64° and 116° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  17. 17.What is the complement of 70° (in degrees)?
  18. 18.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the complement of 52° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 127°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 26°. What is the angle next to it on the same line (in degrees)?
  22. 22.What is the supplement of 60° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 69°. What is its other interior angle on the same side of the transversal (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 101°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 65°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 54°. What is its corresponding angle (in degrees)?
  28. 28.Are 69° and 21° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  29. 29.What is the supplement of 115° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 83°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its alternate interior angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its alternate interior angle (in degrees)?
  34. 34.Are 71° and 109° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  35. 35.Are 46° and 44° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  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.What is the complement of 33° (in degrees)?
  38. 38.Are 19° and 71° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  39. 39.Two angles are supplementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  40. 40.Two angles are supplementary. One is 34° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 160
  2. 98
  3. 115
  4. 105
  5. 102
  6. Complementary
  7. 50
  8. 24
  9. 66
  10. Neither
  11. 107
  12. 84
  13. 56
  14. 119
  15. 148
  16. Supplementary
  17. 20
  18. 62
  19. 38
  20. 127
  21. 154
  22. 120
  23. 111
  24. 101
  25. 54
  26. 65
  27. 54
  28. Complementary
  29. 65
  30. 83
  31. 130
  32. 144
  33. 60
  34. Supplementary
  35. Complementary
  36. 41
  37. 57
  38. Complementary
  39. 111
  40. 107

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