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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 337 · 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.Two angles are supplementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 72°. What is its other interior angle on the same side of the transversal (in degrees)?
  3. 3.What is the supplement of 52° (in degrees)?
  4. 4.What is the complement of 69° (in degrees)?
  5. 5.Are 24° and 156° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  6. 6.Two straight lines cross each other. One of the angles formed is 137°. What is the angle next to it on the same line (in degrees)?
  7. 7.What is the supplement of 165° (in degrees)?
  8. 8.Are 80° and 100° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  9. 9.What is the complement of 72° (in degrees)?
  10. 10.What is the complement of 48° (in degrees)?
  11. 11.What is the complement of 66° (in degrees)?
  12. 12.What is the supplement of 53° (in degrees)?
  13. 13.What is the complement of 64° (in degrees)?
  14. 14.What is the supplement of 120° (in degrees)?
  15. 15.What is the complement of 75° (in degrees)?
  16. 16.What is the supplement of 88° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 105°. What is the angle next to it on the same line (in degrees)?
  18. 18.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the complement of 24° (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One angle is 90°. What is its corresponding angle (in degrees)?
  21. 21.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 96°. What is its corresponding angle (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 72°. What is its alternate interior angle (in degrees)?
  24. 24.What is the supplement of 92° (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 101°. What is the angle next to it on the same line (in degrees)?
  26. 26.What is the complement of 83° (in degrees)?
  27. 27.Are 29° and 151° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  28. 28.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)?
  29. 29.Are 16° and 164° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  30. 30.Two angles are supplementary. One is 70° more than the other. What is the bigger angle (in degrees)?
  31. 31.What is the supplement of 137° (in degrees)?
  32. 32.What is the complement of 31° (in degrees)?
  33. 33.What is the complement of 33° (in degrees)?
  34. 34.What is the complement of 39° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 31°. What is the angle next to it on the same line (in degrees)?
  36. 36.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  37. 37.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 48°. 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 114°. What is its corresponding angle (in degrees)?
  40. 40.What is the supplement of 128° (in degrees)?

Answer key

  1. 122
  2. 108
  3. 128
  4. 21
  5. Supplementary
  6. 43
  7. 15
  8. Supplementary
  9. 18
  10. 42
  11. 24
  12. 127
  13. 26
  14. 60
  15. 15
  16. 92
  17. 75
  18. 121
  19. 66
  20. 90
  21. 71
  22. 96
  23. 72
  24. 88
  25. 79
  26. 7
  27. Supplementary
  28. 129
  29. Supplementary
  30. 125
  31. 43
  32. 59
  33. 57
  34. 51
  35. 149
  36. 62
  37. 95
  38. 132
  39. 114
  40. 52

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