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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 498 · 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 89° (in degrees)?
  2. 2.Are 59° and 24° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.What is the supplement of 145° (in degrees)?
  4. 4.Are 12° and 78° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  5. 5.Two parallel lines are cut by a transversal. One angle is 59°. What is its corresponding angle (in degrees)?
  6. 6.What is the supplement of 14° (in degrees)?
  7. 7.What is the supplement of 64° (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 145°. What is its alternate interior angle (in degrees)?
  9. 9.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 84°. What is its corresponding angle (in degrees)?
  11. 11.What is the complement of 55° (in degrees)?
  12. 12.What is the supplement of 50° (in degrees)?
  13. 13.What is the complement of 5° (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 35° (in degrees)?
  16. 16.What is the supplement of 134° (in degrees)?
  17. 17.What is the supplement of 166° (in degrees)?
  18. 18.Are 69° and 111° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  19. 19.What is the complement of 68° (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 88°. What is its alternate interior angle (in degrees)?
  21. 21.What is the supplement of 120° (in degrees)?
  22. 22.What is the complement of 11° (in degrees)?
  23. 23.Two parallel lines are cut by a transversal. One angle is 79°. What is its corresponding angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 88°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 107°. What is its corresponding angle (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 49°. What is its alternate interior angle (in degrees)?
  28. 28.What is the supplement of 25° (in degrees)?
  29. 29.What is the complement of 39° (in degrees)?
  30. 30.What is the supplement of 20° (in degrees)?
  31. 31.Are 28° and 60° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  32. 32.What is the supplement of 36° (in degrees)?
  33. 33.Are 29° and 151° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.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)?
  35. 35.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 56°. What is the angle vertically opposite to it (in degrees)?
  37. 37.Are 14° and 76° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  38. 38.Are 25° and 65° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  39. 39.Are 63° and 117° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.What is the supplement of 53° (in degrees)?

Answer key

  1. 91
  2. Neither
  3. 35
  4. Complementary
  5. 59
  6. 166
  7. 116
  8. 145
  9. 77
  10. 84
  11. 35
  12. 130
  13. 85
  14. 56
  15. 55
  16. 46
  17. 14
  18. Supplementary
  19. 22
  20. 88
  21. 60
  22. 79
  23. 79
  24. 88
  25. 60
  26. 107
  27. 49
  28. 155
  29. 51
  30. 160
  31. Neither
  32. 144
  33. Supplementary
  34. 141
  35. 75
  36. 56
  37. Complementary
  38. Complementary
  39. Supplementary
  40. 127

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