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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 964 · 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 22° and 68° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Are 14° and 64° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  3. 3.What is the supplement of 127° (in degrees)?
  4. 4.What is the complement of 17° (in degrees)?
  5. 5.What is the supplement of 16° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 51°. What is the angle next to it on the same line (in degrees)?
  7. 7.What is the complement of 11° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 69°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 110°. What is the angle vertically opposite to it (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 41°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 20°. What is the angle next to it on the same line (in degrees)?
  12. 12.What is the complement of 74° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 93°. What is its corresponding angle (in degrees)?
  14. 14.What is the supplement of 48° (in degrees)?
  15. 15.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One interior angle is 47°. What is its other interior angle on the same side of the transversal (in degrees)?
  17. 17.What is the complement of 43° (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 102°. What is its corresponding angle (in degrees)?
  19. 19.What is the complement of 66° (in degrees)?
  20. 20.What is the complement of 85° (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 27°. What is the angle vertically opposite to it (in degrees)?
  22. 22.What is the supplement of 52° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 26°. What is the angle vertically opposite to it (in degrees)?
  24. 24.What is the complement of 23° (in degrees)?
  25. 25.What is the complement of 6° (in degrees)?
  26. 26.Are 32° and 148° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  27. 27.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  29. 29.Are 42° and 48° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its alternate interior angle (in degrees)?
  31. 31.What is the complement of 22° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 65°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its other interior angle on the same side of the transversal (in degrees)?
  34. 34.What is the complement of 13° (in degrees)?
  35. 35.What is the supplement of 91° (in degrees)?
  36. 36.What is the supplement of 175° (in degrees)?
  37. 37.What is the complement of 83° (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 39°. What is the angle next to it on the same line (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 115°. What is its corresponding angle (in degrees)?
  40. 40.What is the supplement of 18° (in degrees)?

Answer key

  1. Complementary
  2. Neither
  3. 53
  4. 73
  5. 164
  6. 129
  7. 79
  8. 69
  9. 110
  10. 41
  11. 160
  12. 16
  13. 93
  14. 132
  15. 43
  16. 133
  17. 47
  18. 102
  19. 24
  20. 5
  21. 27
  22. 128
  23. 26
  24. 67
  25. 84
  26. Supplementary
  27. 50
  28. 77
  29. Complementary
  30. 48
  31. 68
  32. 115
  33. 122
  34. 77
  35. 89
  36. 5
  37. 7
  38. 141
  39. 115
  40. 162

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