← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 805 · 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 straight lines cross each other. One of the angles formed is 21°. What is the angle next to it on the same line (in degrees)?
  2. 2.Are 76° and 115° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.What is the supplement of 93° (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 92°. 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 50°. What is the angle vertically opposite to it (in degrees)?
  6. 6.What is the complement of 48° (in degrees)?
  7. 7.Are 58° and 122° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 47°. What is its alternate interior angle (in degrees)?
  9. 9.What is the complement of 53° (in degrees)?
  10. 10.What is the complement of 22° (in degrees)?
  11. 11.Are 40° and 50° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 80°. What is its alternate interior angle (in degrees)?
  13. 13.Are 34° and 56° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  14. 14.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the supplement of 99° (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 56°. What is the angle next to it on the same line (in degrees)?
  17. 17.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)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 139°. What is its alternate interior angle (in degrees)?
  19. 19.What is the supplement of 90° (in degrees)?
  20. 20.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  21. 21.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the supplement of 164° (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 90°. What is its corresponding angle (in degrees)?
  25. 25.What is the supplement of 12° (in degrees)?
  26. 26.What is the complement of 32° (in degrees)?
  27. 27.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 111°. What is its corresponding angle (in degrees)?
  29. 29.What is the complement of 77° (in degrees)?
  30. 30.What is the supplement of 25° (in degrees)?
  31. 31.What is the complement of 50° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 133°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 94°. What is its alternate interior angle (in degrees)?
  34. 34.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the complement of 73° (in degrees)?
  38. 38.Are 24° and 156° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  39. 39.What is the complement of 65° (in degrees)?
  40. 40.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 159
  2. Neither
  3. 87
  4. 88
  5. 50
  6. 42
  7. Supplementary
  8. 47
  9. 37
  10. 68
  11. Complementary
  12. 80
  13. Complementary
  14. 68
  15. 81
  16. 124
  17. 138
  18. 139
  19. 90
  20. 46
  21. 57
  22. 71
  23. 16
  24. 90
  25. 168
  26. 58
  27. 147
  28. 111
  29. 13
  30. 155
  31. 40
  32. 133
  33. 94
  34. 158
  35. 74
  36. 63
  37. 17
  38. Supplementary
  39. 25
  40. 78

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