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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 301 · 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 8° (in degrees)?
  2. 2.Are 16° and 74° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  3. 3.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  4. 4.What is the supplement of 100° (in degrees)?
  5. 5.What is the complement of 34° (in degrees)?
  6. 6.What is the supplement of 149° (in degrees)?
  7. 7.What is the supplement of 14° (in degrees)?
  8. 8.Are 35° and 145° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  9. 9.Two straight lines cross each other. One of the angles formed is 100°. What is the angle vertically opposite to it (in degrees)?
  10. 10.What is the complement of 7° (in degrees)?
  11. 11.Are 65° and 95° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.What is the supplement of 62° (in degrees)?
  13. 13.What is the complement of 53° (in degrees)?
  14. 14.What is the supplement of 172° (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 118°. What is its corresponding angle (in degrees)?
  16. 16.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  17. 17.What is the complement of 48° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 158°. What is the angle vertically opposite to it (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 46°. What is the angle next to it on the same line (in degrees)?
  20. 20.What is the supplement of 32° (in degrees)?
  21. 21.What is the supplement of 34° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One interior angle is 105°. What is its alternate interior angle (in degrees)?
  23. 23.Two angles are supplementary. One is 76° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the supplement of 28° (in degrees)?
  25. 25.Two angles are supplementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 140° (in degrees)?
  29. 29.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the complement of 71° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 107°. What is its other interior angle on the same side of the transversal (in degrees)?
  32. 32.What is the supplement of 5° (in degrees)?
  33. 33.Are 10° and 80° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  34. 34.What is the supplement of 165° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One angle is 123°. What is its corresponding angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 48°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 30°. What is its corresponding angle (in degrees)?
  38. 38.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  39. 39.Are 17° and 80° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.What is the complement of 26° (in degrees)?

Answer key

  1. 172
  2. Complementary
  3. 71
  4. 80
  5. 56
  6. 31
  7. 166
  8. Supplementary
  9. 100
  10. 83
  11. Neither
  12. 118
  13. 37
  14. 8
  15. 118
  16. 113
  17. 42
  18. 158
  19. 134
  20. 148
  21. 146
  22. 105
  23. 128
  24. 152
  25. 117
  26. 44
  27. 69
  28. 40
  29. 46
  30. 19
  31. 73
  32. 175
  33. Complementary
  34. 15
  35. 123
  36. 48
  37. 30
  38. 58
  39. Neither
  40. 64

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