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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 728 · 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 17° (in degrees)?
  2. 2.What is the supplement of 95° (in degrees)?
  3. 3.Two angles are supplementary. One is 80° more than the other. What is the bigger angle (in degrees)?
  4. 4.Are 77° and 152° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 94°. What is its alternate interior angle (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 99°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Are 17° and 73° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  8. 8.What is the supplement of 45° (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
  10. 10.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  11. 11.Are 31° and 149° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.Two angles are supplementary. One is 76° more than the other. What is the bigger angle (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 93°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two parallel lines are cut by a transversal. One angle is 123°. What is its corresponding angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Two angles are supplementary. One is 16° more than the other. What is the bigger angle (in degrees)?
  18. 18.Are 44° and 129° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its alternate interior angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 33°. What is the angle next to it on the same line (in degrees)?
  21. 21.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
  23. 23.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 128°. What is the angle next to it on the same line (in degrees)?
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its alternate interior angle (in degrees)?
  26. 26.Are 20° and 160° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  27. 27.Two straight lines cross each other. One of the angles formed is 148°. What is the angle next to it on the same line (in degrees)?
  28. 28.What is the complement of 82° (in degrees)?
  29. 29.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 144°. What is the angle vertically opposite to it (in degrees)?
  31. 31.What is the supplement of 13° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 34°. What is the angle next to it on the same line (in degrees)?
  33. 33.Two angles are supplementary. One is 122° 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 32°. What is the angle vertically opposite to it (in degrees)?
  35. 35.Two angles are supplementary. One is 118° 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 147°. What is the angle next to it on the same line (in degrees)?
  37. 37.Two angles are complementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the complement of 54° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 131°. What is the angle vertically opposite to it (in degrees)?
  40. 40.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 163
  2. 85
  3. 130
  4. Neither
  5. 94
  6. 99
  7. Complementary
  8. 135
  9. 36
  10. 49
  11. Supplementary
  12. 128
  13. 93
  14. 73
  15. 123
  16. 139
  17. 98
  18. Neither
  19. 144
  20. 147
  21. 91
  22. 86
  23. 50
  24. 52
  25. 124
  26. Supplementary
  27. 32
  28. 8
  29. 64
  30. 144
  31. 167
  32. 146
  33. 151
  34. 32
  35. 149
  36. 33
  37. 68
  38. 36
  39. 131
  40. 135

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