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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 610 · 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 straight lines cross each other. One of the angles formed is 44°. What is the angle next to it on the same line (in degrees)?
  2. 2.What is the supplement of 42° (in degrees)?
  3. 3.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  4. 4.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the complement of 57° (in degrees)?
  6. 6.Are 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  7. 7.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One angle is 39°. What is its corresponding angle (in degrees)?
  9. 9.What is the complement of 69° (in degrees)?
  10. 10.What is the complement of 44° (in degrees)?
  11. 11.What is the complement of 55° (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 37°. What is the angle next to it on the same line (in degrees)?
  13. 13.Are 40° and 50° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  14. 14.Are 32° and 163° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  15. 15.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)?
  16. 16.Are 24° and 116° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  17. 17.What is the complement of 19° (in degrees)?
  18. 18.What is the complement of 36° (in degrees)?
  19. 19.What is the supplement of 71° (in degrees)?
  20. 20.What is the complement of 14° (in degrees)?
  21. 21.What is the supplement of 145° (in degrees)?
  22. 22.What is the complement of 73° (in degrees)?
  23. 23.What is the supplement of 156° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 90°. What is the angle vertically opposite to it (in degrees)?
  25. 25.Are 72° and 46° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  26. 26.Two straight lines cross each other. One of the angles formed is 82°. What is the angle next to it on the same line (in degrees)?
  27. 27.What is the complement of 35° (in degrees)?
  28. 28.What is the supplement of 113° (in degrees)?
  29. 29.Two angles are supplementary. One is 132° more than the other. What is the bigger angle (in degrees)?
  30. 30.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 78°. What is its alternate interior angle (in degrees)?
  32. 32.Are 38° and 52° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  33. 33.Are 10° and 80° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  34. 34.Two parallel lines are cut by a transversal. One angle is 101°. What is its corresponding angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 66°. What is its alternate interior angle (in degrees)?
  36. 36.Are 17° and 73° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  37. 37.What is the supplement of 37° (in degrees)?
  38. 38.What is the complement of 46° (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 58°. What is its corresponding angle (in degrees)?
  40. 40.What is the supplement of 149° (in degrees)?

Answer key

  1. 136
  2. 138
  3. 73
  4. 77
  5. 33
  6. Supplementary
  7. 54
  8. 39
  9. 21
  10. 46
  11. 35
  12. 143
  13. Complementary
  14. Neither
  15. 146
  16. Neither
  17. 71
  18. 54
  19. 109
  20. 76
  21. 35
  22. 17
  23. 24
  24. 90
  25. Neither
  26. 98
  27. 55
  28. 67
  29. 156
  30. 92
  31. 78
  32. Complementary
  33. Complementary
  34. 101
  35. 66
  36. Complementary
  37. 143
  38. 44
  39. 58
  40. 31

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