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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 907 · 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 38° (in degrees)?
  2. 2.What is the complement of 65° (in degrees)?
  3. 3.Are 26° and 40° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  4. 4.What is the supplement of 152° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 116°. What is the angle next to it on the same line (in degrees)?
  6. 6.What is the complement of 76° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 105°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 109°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its alternate interior angle (in degrees)?
  11. 11.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 75°. What is the angle vertically opposite to it (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 153°. What is the angle next to it on the same line (in degrees)?
  14. 14.What is the complement of 56° (in degrees)?
  15. 15.What is the complement of 66° (in degrees)?
  16. 16.Are 56° and 124° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its other interior angle on the same side of the transversal (in degrees)?
  19. 19.What is the complement of 27° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 156°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One angle is 74°. What is its corresponding angle (in degrees)?
  22. 22.What is the supplement of 79° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 145°. What is its corresponding angle (in degrees)?
  24. 24.What is the supplement of 33° (in degrees)?
  25. 25.What is the complement of 16° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 100°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 122°. What is the angle vertically opposite to it (in degrees)?
  28. 28.What is the supplement of 111° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 30°. What is the angle next to it on the same line (in degrees)?
  30. 30.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  31. 31.Are 30° and 61° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  32. 32.Are 15° and 165° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  33. 33.What is the complement of 34° (in degrees)?
  34. 34.What is the complement of 13° (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 132°. What is its alternate interior angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 35°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 146°. What is its corresponding angle (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 85°. What is the angle next to it on the same line (in degrees)?
  40. 40.What is the supplement of 25° (in degrees)?

Answer key

  1. 142
  2. 25
  3. Neither
  4. 28
  5. 64
  6. 14
  7. 75
  8. 109
  9. 61
  10. 136
  11. 56
  12. 75
  13. 27
  14. 34
  15. 24
  16. Supplementary
  17. 20
  18. 118
  19. 63
  20. 156
  21. 74
  22. 101
  23. 145
  24. 147
  25. 74
  26. 80
  27. 122
  28. 69
  29. 150
  30. 54
  31. Neither
  32. Supplementary
  33. 56
  34. 77
  35. 132
  36. 35
  37. 64
  38. 146
  39. 95
  40. 155

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