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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 924 · 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 62° (in degrees)?
  2. 2.What is the complement of 16° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 59°. What is the angle vertically opposite to it (in degrees)?
  4. 4.What is the supplement of 140° (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One angle is 132°. What is its corresponding angle (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
  7. 7.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  8. 8.What is the supplement of 144° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
  10. 10.Two angles are supplementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the complement of 44° (in degrees)?
  12. 12.What is the supplement of 42° (in degrees)?
  13. 13.What is the complement of 19° (in degrees)?
  14. 14.What is the supplement of 85° (in degrees)?
  15. 15.Are 23° and 67° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.What is the complement of 74° (in degrees)?
  17. 17.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
  18. 18.Are 27° and 153° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  19. 19.What is the supplement of 37° (in degrees)?
  20. 20.What is the supplement of 14° (in degrees)?
  21. 21.What is the complement of 10° (in degrees)?
  22. 22.Are 17° and 163° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  23. 23.Two parallel lines are cut by a transversal. One angle is 65°. What is its corresponding angle (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?
  25. 25.What is the supplement of 143° (in degrees)?
  26. 26.Are 21° and 33° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  27. 27.Two straight lines cross each other. One of the angles formed is 60°. What is the angle next to it on the same line (in degrees)?
  28. 28.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  29. 29.Are 36° and 144° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  30. 30.Are 14° and 166° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.What is the complement of 64° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 142°. What is its corresponding angle (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 50°. What is the angle next to it on the same line (in degrees)?
  34. 34.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)?
  35. 35.Are 52° and 130° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  36. 36.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the supplement of 48° (in degrees)?
  38. 38.Two angles are complementary. One is 52° 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 156°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the complement of 46° (in degrees)?

Answer key

  1. 28
  2. 74
  3. 59
  4. 40
  5. 132
  6. 152
  7. 51
  8. 36
  9. 53
  10. 124
  11. 46
  12. 138
  13. 71
  14. 95
  15. Complementary
  16. 16
  17. 137
  18. Supplementary
  19. 143
  20. 166
  21. 80
  22. Supplementary
  23. 65
  24. 44
  25. 37
  26. Neither
  27. 120
  28. 55
  29. Supplementary
  30. Supplementary
  31. 26
  32. 142
  33. 130
  34. 136
  35. Neither
  36. 56
  37. 132
  38. 71
  39. 24
  40. 44

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