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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 205 · 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.Two parallel lines are cut by a transversal. One interior angle is 30°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
  3. 3.Are 58° and 37° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  4. 4.Two straight lines cross each other. One of the angles formed is 86°. What is the angle vertically opposite to it (in degrees)?
  5. 5.What is the complement of 71° (in degrees)?
  6. 6.What is the complement of 26° (in degrees)?
  7. 7.What is the supplement of 73° (in degrees)?
  8. 8.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the supplement of 66° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 119°. What is its corresponding angle (in degrees)?
  11. 11.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 47° (in degrees)?
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 133°. What is its alternate interior angle (in degrees)?
  14. 14.Two straight lines cross each other. One of the angles formed is 55°. What is the angle vertically opposite to it (in degrees)?
  15. 15.What is the supplement of 36° (in degrees)?
  16. 16.What is the supplement of 16° (in degrees)?
  17. 17.Are 41° and 151° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  18. 18.Are 70° and 22° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.What is the supplement of 92° (in degrees)?
  21. 21.What is the supplement of 68° (in degrees)?
  22. 22.What is the complement of 37° (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 135°. What is the angle next to it on the same line (in degrees)?
  24. 24.What is the complement of 46° (in degrees)?
  25. 25.Are 78° and 102° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  26. 26.What is the complement of 62° (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 91°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One angle is 32°. What is its corresponding angle (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 91°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 152°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 98°. What is its corresponding angle (in degrees)?
  32. 32.Are 63° and 27° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.Two straight lines cross each other. One of the angles formed is 88°. What is the angle vertically opposite to it (in degrees)?
  34. 34.What is the complement of 67° (in degrees)?
  35. 35.What is the complement of 8° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 56°. What is its other interior angle on the same side of the transversal (in degrees)?
  37. 37.What is the complement of 30° (in degrees)?
  38. 38.What is the complement of 70° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 50°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Are 53° and 127° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither

Answer key

  1. 150
  2. 60
  3. Neither
  4. 86
  5. 19
  6. 64
  7. 107
  8. 48
  9. 114
  10. 119
  11. 112
  12. 43
  13. 133
  14. 55
  15. 144
  16. 164
  17. Neither
  18. Neither
  19. 141
  20. 88
  21. 112
  22. 53
  23. 45
  24. 44
  25. Supplementary
  26. 28
  27. 91
  28. 32
  29. 89
  30. 152
  31. 98
  32. Complementary
  33. 88
  34. 23
  35. 82
  36. 124
  37. 60
  38. 20
  39. 50
  40. Supplementary

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