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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 722 · 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 angle is 99°. What is its corresponding angle (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 85°. What is the angle next to it on the same line (in degrees)?
  3. 3.What is the supplement of 75° (in degrees)?
  4. 4.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its other interior angle on the same side of the transversal (in degrees)?
  5. 5.What is the supplement of 18° (in degrees)?
  6. 6.Are 27° and 63° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 48°. What is the angle next to it on the same line (in degrees)?
  9. 9.Are 63° and 27° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  10. 10.What is the supplement of 86° (in degrees)?
  11. 11.Two straight lines cross each other. One of the angles formed is 49°. What is the angle next to it on the same line (in degrees)?
  12. 12.Two parallel lines are cut by a transversal. One angle is 103°. What is its corresponding angle (in degrees)?
  13. 13.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
  14. 14.What is the supplement of 16° (in degrees)?
  15. 15.What is the supplement of 19° (in degrees)?
  16. 16.Are 63° and 117° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  17. 17.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 58°. What is its corresponding angle (in degrees)?
  19. 19.What is the complement of 28° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Are 13° and 143° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.Two straight lines cross each other. One of the angles formed is 103°. What is the angle vertically opposite to it (in degrees)?
  23. 23.Two straight lines cross each other. One of the angles formed is 128°. What is the angle vertically opposite to it (in degrees)?
  24. 24.Are 16° and 123° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.What is the complement of 42° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 51°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 55° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 40°. What is its alternate interior angle (in degrees)?
  30. 30.What is the complement of 40° (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 122°. What is its corresponding angle (in degrees)?
  32. 32.What is the complement of 6° (in degrees)?
  33. 33.What is the supplement of 127° (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 44°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its alternate interior angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 62°. What is the angle next to it on the same line (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One angle is 88°. What is its corresponding angle (in degrees)?
  38. 38.Are 20° and 70° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  39. 39.What is the complement of 8° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 64°. What is the angle vertically opposite to it (in degrees)?

Answer key

  1. 99
  2. 95
  3. 105
  4. 148
  5. 162
  6. Complementary
  7. 134
  8. 132
  9. Complementary
  10. 94
  11. 131
  12. 103
  13. 72
  14. 164
  15. 161
  16. Supplementary
  17. 48
  18. 58
  19. 62
  20. 139
  21. Neither
  22. 103
  23. 128
  24. Neither
  25. 48
  26. 51
  27. 71
  28. 125
  29. 40
  30. 50
  31. 122
  32. 84
  33. 53
  34. 44
  35. 121
  36. 118
  37. 88
  38. Complementary
  39. 82
  40. 64

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