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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 736 · 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 45° (in degrees)?
  2. 2.What is the supplement of 36° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 70°. What is its alternate interior angle (in degrees)?
  4. 4.What is the supplement of 160° (in degrees)?
  5. 5.Are 72° and 18° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  6. 6.Are 38° and 52° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  7. 7.Are 52° and 38° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  8. 8.What is the supplement of 49° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 109°. What is the angle next to it on the same line (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 96°. What is its corresponding angle (in degrees)?
  11. 11.What is the complement of 26° (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 79°. What is its corresponding angle (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 148°. What is its alternate interior angle (in degrees)?
  14. 14.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  15. 15.What is the complement of 69° (in degrees)?
  16. 16.What is the complement of 28° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 40°. What is its other interior angle on the same side of the transversal (in degrees)?
  18. 18.What is the supplement of 82° (in degrees)?
  19. 19.What is the supplement of 131° (in degrees)?
  20. 20.What is the supplement of 34° (in degrees)?
  21. 21.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the supplement of 141° (in degrees)?
  24. 24.What is the supplement of 157° (in degrees)?
  25. 25.Are 28° and 61° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  26. 26.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)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 131°. What is its corresponding angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its alternate interior angle (in degrees)?
  29. 29.Are 43° and 47° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  30. 30.What is the complement of 41° (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 112°. What is the angle vertically opposite to it (in degrees)?
  32. 32.What is the complement of 37° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 156°. What is the angle vertically opposite to it (in degrees)?
  34. 34.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the complement of 30° (in degrees)?
  36. 36.What is the supplement of 26° (in degrees)?
  37. 37.What is the complement of 6° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 36°. What is its alternate interior angle (in degrees)?
  39. 39.Are 73° and 11° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  40. 40.What is the complement of 14° (in degrees)?

Answer key

  1. 135
  2. 144
  3. 70
  4. 20
  5. Complementary
  6. Complementary
  7. Complementary
  8. 131
  9. 71
  10. 96
  11. 64
  12. 79
  13. 148
  14. 56
  15. 21
  16. 62
  17. 140
  18. 98
  19. 49
  20. 146
  21. 63
  22. 49
  23. 39
  24. 23
  25. Neither
  26. 116
  27. 131
  28. 64
  29. Complementary
  30. 49
  31. 112
  32. 53
  33. 156
  34. 55
  35. 60
  36. 154
  37. 84
  38. 36
  39. Neither
  40. 76

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