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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 513 · 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 supplement of 41° (in degrees)?
  2. 2.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two angles are supplementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 106° (in degrees)?
  5. 5.What is the complement of 48° (in degrees)?
  6. 6.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  7. 7.Are 63° and 27° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 97°. What is its other interior angle on the same side of the transversal (in degrees)?
  10. 10.Are 16° and 89° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  11. 11.What is the complement of 84° (in degrees)?
  12. 12.What is the supplement of 32° (in degrees)?
  13. 13.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  14. 14.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the complement of 64° (in degrees)?
  16. 16.What is the complement of 35° (in degrees)?
  17. 17.What is the supplement of 5° (in degrees)?
  18. 18.Are 54° and 36° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.What is the complement of 54° (in degrees)?
  20. 20.What is the complement of 58° (in degrees)?
  21. 21.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 59°. What is its corresponding angle (in degrees)?
  23. 23.What is the supplement of 154° (in degrees)?
  24. 24.What is the complement of 76° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 29°. What is the angle next to it on the same line (in degrees)?
  26. 26.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 59°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the complement of 51° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its other interior angle on the same side of the transversal (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 52°. What is the angle next to it on the same line (in degrees)?
  33. 33.What is the supplement of 99° (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 27°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Are 68° and 29° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  36. 36.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  38. 38.What is the complement of 40° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 50°. What is its alternate interior angle (in degrees)?
  40. 40.What is the complement of 73° (in degrees)?

Answer key

  1. 139
  2. 65
  3. 97
  4. 74
  5. 42
  6. 153
  7. Complementary
  8. 152
  9. 83
  10. Neither
  11. 6
  12. 148
  13. 68
  14. 76
  15. 26
  16. 55
  17. 175
  18. Complementary
  19. 36
  20. 32
  21. 47
  22. 59
  23. 26
  24. 14
  25. 151
  26. 93
  27. 59
  28. 137
  29. 60
  30. 39
  31. 116
  32. 128
  33. 81
  34. 27
  35. Neither
  36. 157
  37. 43
  38. 50
  39. 50
  40. 17

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