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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 343 · 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 92° (in degrees)?
  2. 2.Are 47° and 133° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its other interior angle on the same side of the transversal (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 126°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.What is the complement of 20° (in degrees)?
  6. 6.What is the supplement of 174° (in degrees)?
  7. 7.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)?
  8. 8.What is the complement of 68° (in degrees)?
  9. 9.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  11. 11.What is the supplement of 10° (in degrees)?
  12. 12.What is the complement of 53° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  14. 14.What is the supplement of 76° (in degrees)?
  15. 15.What is the complement of 44° (in degrees)?
  16. 16.What is the supplement of 36° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 138°. What is its other interior angle on the same side of the transversal (in degrees)?
  18. 18.Are 64° and 26° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  19. 19.Two angles are supplementary. One is 116° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 77° and 103° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  21. 21.What is the complement of 37° (in degrees)?
  22. 22.Two parallel lines are cut by a transversal. One angle is 103°. What is its corresponding angle (in degrees)?
  23. 23.What is the complement of 9° (in degrees)?
  24. 24.What is the complement of 56° (in degrees)?
  25. 25.What is the complement of 11° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 72°. What is the angle vertically opposite to it (in degrees)?
  27. 27.What is the complement of 74° (in degrees)?
  28. 28.What is the supplement of 34° (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 152°. What is the angle next to it on the same line (in degrees)?
  30. 30.What is the complement of 12° (in degrees)?
  31. 31.What is the complement of 65° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 125°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 78°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 113°. What is the angle next to it on the same line (in degrees)?
  36. 36.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the complement of 19° (in degrees)?
  38. 38.What is the supplement of 61° (in degrees)?
  39. 39.Are 14° and 76° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  40. 40.Two straight lines cross each other. One of the angles formed is 55°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 88
  2. Supplementary
  3. 71
  4. 54
  5. 70
  6. 6
  7. 116
  8. 22
  9. 52
  10. 46
  11. 170
  12. 37
  13. 70
  14. 104
  15. 46
  16. 144
  17. 42
  18. Complementary
  19. 148
  20. Supplementary
  21. 53
  22. 103
  23. 81
  24. 34
  25. 79
  26. 72
  27. 16
  28. 146
  29. 28
  30. 78
  31. 25
  32. 125
  33. 102
  34. 67
  35. 67
  36. 70
  37. 71
  38. 119
  39. Complementary
  40. 125

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