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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 443 · 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 96° (in degrees)?
  2. 2.What is the complement of 55° (in degrees)?
  3. 3.What is the complement of 62° (in degrees)?
  4. 4.What is the complement of 59° (in degrees)?
  5. 5.Are 61° and 119° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  6. 6.What is the complement of 74° (in degrees)?
  7. 7.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the supplement of 44° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 130°. What is its corresponding angle (in degrees)?
  11. 11.Are 70° and 110° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Two straight lines cross each other. One of the angles formed is 86°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 46° (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 97°. What is the angle vertically opposite to it (in degrees)?
  15. 15.What is the complement of 66° (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 138°. What is the angle next to it on the same line (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 129°. What is its other interior angle on the same side of the transversal (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  19. 19.What is the complement of 26° (in degrees)?
  20. 20.What is the complement of 77° (in degrees)?
  21. 21.What is the supplement of 142° (in degrees)?
  22. 22.Are 43° and 155° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.What is the complement of 24° (in degrees)?
  24. 24.What is the complement of 81° (in degrees)?
  25. 25.What is the supplement of 6° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 82°. What is its corresponding angle (in degrees)?
  27. 27.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 135° (in degrees)?
  29. 29.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  30. 30.Are 14° and 47° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  31. 31.What is the complement of 21° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 130°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Are 13° and 77° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  36. 36.What is the complement of 9° (in degrees)?
  37. 37.What is the complement of 40° (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 35°. What is the angle next to it on the same line (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 53°. What is its alternate interior angle (in degrees)?
  40. 40.Are 32° and 73° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary

Answer key

  1. 84
  2. 35
  3. 28
  4. 31
  5. Supplementary
  6. 16
  7. 48
  8. 67
  9. 136
  10. 130
  11. Supplementary
  12. 86
  13. 44
  14. 97
  15. 24
  16. 42
  17. 51
  18. 138
  19. 64
  20. 13
  21. 38
  22. Neither
  23. 66
  24. 9
  25. 174
  26. 82
  27. 112
  28. 45
  29. 49
  30. Neither
  31. 69
  32. 50
  33. 76
  34. 24
  35. Complementary
  36. 81
  37. 50
  38. 145
  39. 53
  40. Neither

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