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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 624 · 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 22° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One interior angle is 39°. What is its alternate interior angle (in degrees)?
  3. 3.What is the complement of 71° (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 128°. What is the angle vertically opposite to it (in degrees)?
  5. 5.Are 24° and 156° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  6. 6.What is the supplement of 92° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  8. 8.Are 21° and 69° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  9. 9.What is the supplement of 63° (in degrees)?
  10. 10.What is the complement of 47° (in degrees)?
  11. 11.What is the supplement of 6° (in degrees)?
  12. 12.Two angles are supplementary. One is 130° 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 149°. What is the angle next to it on the same line (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 85°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 128°. What is its corresponding angle (in degrees)?
  17. 17.What is the supplement of 172° (in degrees)?
  18. 18.What is the complement of 56° (in degrees)?
  19. 19.Are 46° and 144° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  20. 20.Two straight lines cross each other. One of the angles formed is 50°. What is the angle next to it on the same line (in degrees)?
  21. 21.What is the supplement of 14° (in degrees)?
  22. 22.What is the complement of 61° (in degrees)?
  23. 23.What is the supplement of 34° (in degrees)?
  24. 24.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)?
  25. 25.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the complement of 50° (in degrees)?
  27. 27.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 44°. What is its other interior angle on the same side of the transversal (in degrees)?
  29. 29.What is the supplement of 104° (in degrees)?
  30. 30.What is the supplement of 129° (in degrees)?
  31. 31.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  32. 32.What is the complement of 45° (in degrees)?
  33. 33.What is the supplement of 52° (in degrees)?
  34. 34.What is the complement of 53° (in degrees)?
  35. 35.Are 26° and 154° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  36. 36.What is the complement of 82° (in degrees)?
  37. 37.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 37°. What is its alternate interior angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its other interior angle on the same side of the transversal (in degrees)?
  40. 40.Are 48° and 132° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary

Answer key

  1. 158
  2. 39
  3. 19
  4. 128
  5. Supplementary
  6. 88
  7. 138
  8. Complementary
  9. 117
  10. 43
  11. 174
  12. 155
  13. 31
  14. 95
  15. 152
  16. 128
  17. 8
  18. 34
  19. Neither
  20. 130
  21. 166
  22. 29
  23. 146
  24. 32
  25. 62
  26. 40
  27. 61
  28. 136
  29. 76
  30. 51
  31. 59
  32. 45
  33. 128
  34. 37
  35. Supplementary
  36. 8
  37. 57
  38. 37
  39. 132
  40. Supplementary

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