← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 643 · 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 66° and 114° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  2. 2.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 91°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the supplement of 175° (in degrees)?
  5. 5.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)?
  6. 6.What is the complement of 31° (in degrees)?
  7. 7.What is the complement of 69° (in degrees)?
  8. 8.What is the complement of 21° (in degrees)?
  9. 9.Are 46° and 117° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  10. 10.Two angles are supplementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 73°. What is the angle next to it on the same line (in degrees)?
  12. 12.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the complement of 11° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 110°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.What is the supplement of 122° (in degrees)?
  16. 16.What is the supplement of 75° (in degrees)?
  17. 17.What is the supplement of 82° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its other interior angle on the same side of the transversal (in degrees)?
  19. 19.What is the complement of 68° (in degrees)?
  20. 20.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  21. 21.What is the supplement of 11° (in degrees)?
  22. 22.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  23. 23.Are 80° and 9° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  24. 24.Are 56° and 115° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 38°. What is its alternate interior angle (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 146°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two straight lines cross each other. One of the angles formed is 55°. What is the angle vertically opposite to it (in degrees)?
  29. 29.What is the supplement of 83° (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 115°. What is its other interior angle on the same side of the transversal (in degrees)?
  31. 31.What is the supplement of 162° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 124°. What is its corresponding angle (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
  34. 34.What is the supplement of 61° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 25°. What is the angle vertically opposite to it (in degrees)?
  36. 36.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)?
  37. 37.Are 20° and 160° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  38. 38.What is the complement of 27° (in degrees)?
  39. 39.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
  40. 40.Are 54° and 126° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

Answer key

  1. Supplementary
  2. 24
  3. 89
  4. 5
  5. 136
  6. 59
  7. 21
  8. 69
  9. Neither
  10. 108
  11. 107
  12. 50
  13. 79
  14. 70
  15. 58
  16. 105
  17. 98
  18. 103
  19. 22
  20. 52
  21. 169
  22. 61
  23. Neither
  24. Neither
  25. 100
  26. 38
  27. 146
  28. 55
  29. 97
  30. 65
  31. 18
  32. 124
  33. 83
  34. 119
  35. 25
  36. 154
  37. Supplementary
  38. 63
  39. 159
  40. Supplementary

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