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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 527 · 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 complement of 22° (in degrees)?
  2. 2.What is the complement of 5° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 31°. What is its other interior angle on the same side of the transversal (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.Are 20° and 52° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  6. 6.What is the complement of 84° (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 38°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Are 45° and 135° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  9. 9.What is the complement of 31° (in degrees)?
  10. 10.What is the complement of 51° (in degrees)?
  11. 11.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 81°. What is its other interior angle on the same side of the transversal (in degrees)?
  13. 13.Are 34° and 56° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  14. 14.What is the complement of 46° (in degrees)?
  15. 15.What is the supplement of 125° (in degrees)?
  16. 16.Are 53° and 127° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  17. 17.Two straight lines cross each other. One of the angles formed is 129°. What is the angle vertically opposite to it (in degrees)?
  18. 18.What is the complement of 18° (in degrees)?
  19. 19.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 51°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 37°. What is the angle vertically opposite to it (in degrees)?
  22. 22.Are 46° and 33° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.Two parallel lines are cut by a transversal. One angle is 92°. What is its corresponding angle (in degrees)?
  24. 24.Are 33° and 147° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  25. 25.Two angles are supplementary. One is 56° 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 85°. What is the angle next to it on the same line (in degrees)?
  27. 27.What is the supplement of 37° (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 105°. What is the angle vertically opposite to it (in degrees)?
  30. 30.What is the supplement of 22° (in degrees)?
  31. 31.Are 44° and 46° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  32. 32.Two parallel lines are cut by a transversal. One angle is 148°. What is its corresponding angle (in degrees)?
  33. 33.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the complement of 47° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 54°. What is the angle next to it on the same line (in degrees)?
  36. 36.What is the complement of 75° (in degrees)?
  37. 37.What is the supplement of 29° (in degrees)?
  38. 38.What is the supplement of 152° (in degrees)?
  39. 39.What is the supplement of 103° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 26°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 68
  2. 85
  3. 149
  4. 121
  5. Neither
  6. 6
  7. 38
  8. Supplementary
  9. 59
  10. 39
  11. 95
  12. 99
  13. Complementary
  14. 44
  15. 55
  16. Supplementary
  17. 129
  18. 72
  19. 71
  20. 129
  21. 37
  22. Neither
  23. 92
  24. Supplementary
  25. 118
  26. 95
  27. 143
  28. 53
  29. 105
  30. 158
  31. Complementary
  32. 148
  33. 105
  34. 43
  35. 126
  36. 15
  37. 151
  38. 28
  39. 77
  40. 26

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