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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 516 · 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.Are 79° and 101° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  2. 2.Are 67° and 38° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  3. 3.Two parallel lines are cut by a transversal. One angle is 95°. What is its corresponding angle (in degrees)?
  4. 4.Two straight lines cross each other. One of the angles formed is 146°. What is the angle next to it on the same line (in degrees)?
  5. 5.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  6. 6.Two angles are supplementary. One is 32° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 46° (in degrees)?
  8. 8.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  10. 10.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
  11. 11.Are 25° and 65° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  12. 12.Two parallel lines are cut by a transversal. One interior angle is 52°. What is its other interior angle on the same side of the transversal (in degrees)?
  13. 13.What is the complement of 69° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One angle is 139°. What is its corresponding angle (in degrees)?
  15. 15.What is the complement of 58° (in degrees)?
  16. 16.Are 31° and 153° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  17. 17.Two straight lines cross each other. One of the angles formed is 46°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  19. 19.Two straight lines cross each other. One of the angles formed is 64°. What is the angle next to it on the same line (in degrees)?
  20. 20.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  21. 21.Are 13° and 77° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.What is the complement of 20° (in degrees)?
  23. 23.Two angles are complementary. One is 50° 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 22°. What is the angle next to it on the same line (in degrees)?
  25. 25.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 90°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Are 42° and 77° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  28. 28.Are 30° and 150° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  29. 29.What is the complement of 6° (in degrees)?
  30. 30.Are 47° and 43° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  31. 31.Two straight lines cross each other. One of the angles formed is 101°. What is the angle next to it on the same line (in degrees)?
  32. 32.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  33. 33.What is the supplement of 74° (in degrees)?
  34. 34.Are 29° and 61° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  35. 35.What is the complement of 16° (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?
  37. 37.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  38. 38.What is the complement of 18° (in degrees)?
  39. 39.Are 58° and 122° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.Are 27° and 153° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary

Answer key

  1. Supplementary
  2. Neither
  3. 95
  4. 34
  5. 76
  6. 106
  7. 134
  8. 62
  9. 95
  10. 60
  11. Complementary
  12. 128
  13. 21
  14. 139
  15. 32
  16. Neither
  17. 46
  18. 138
  19. 116
  20. 74
  21. Complementary
  22. 70
  23. 70
  24. 158
  25. 50
  26. 90
  27. Neither
  28. Supplementary
  29. 84
  30. Complementary
  31. 79
  32. 102
  33. 106
  34. Complementary
  35. 74
  36. 20
  37. 71
  38. 72
  39. Supplementary
  40. Supplementary

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