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Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 313 · 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 68° and 163° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  2. 2.Two straight lines cross each other. One of the angles formed is 118°. What is the angle vertically opposite to it (in degrees)?
  3. 3.What is the supplement of 27° (in degrees)?
  4. 4.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 31° and 149° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  6. 6.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the complement of 58° (in degrees)?
  8. 8.What is the supplement of 143° (in degrees)?
  9. 9.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
  10. 10.What is the complement of 51° (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 95°. What is its corresponding angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 59°. What is the angle next to it on the same line (in degrees)?
  13. 13.What is the supplement of 59° (in degrees)?
  14. 14.What is the complement of 45° (in degrees)?
  15. 15.Are 69° and 111° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  16. 16.Are 71° and 80° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  17. 17.Two straight lines cross each other. One of the angles formed is 73°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  19. 19.Are 17° and 73° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  20. 20.What is the supplement of 122° (in degrees)?
  21. 21.What is the supplement of 144° (in degrees)?
  22. 22.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the complement of 21° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 102°. What is the angle vertically opposite to it (in degrees)?
  25. 25.What is the supplement of 20° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 31°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its other interior angle on the same side of the transversal (in degrees)?
  28. 28.Are 32° and 110° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  29. 29.Are 22° and 68° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  30. 30.Two straight lines cross each other. One of the angles formed is 61°. What is the angle vertically opposite to it (in degrees)?
  31. 31.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 58°. What is its other interior angle on the same side of the transversal (in degrees)?
  33. 33.Are 63° and 117° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  34. 34.What is the supplement of 8° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 54°. What is the angle next to it on the same line (in degrees)?
  36. 36.Are 46° and 44° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  37. 37.What is the supplement of 93° (in degrees)?
  38. 38.Two straight lines cross each other. One of the angles formed is 53°. What is the angle vertically opposite to it (in degrees)?
  39. 39.Are 41° and 49° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  40. 40.What is the complement of 49° (in degrees)?

Answer key

  1. Neither
  2. 118
  3. 153
  4. 78
  5. Supplementary
  6. 48
  7. 32
  8. 37
  9. 47
  10. 39
  11. 95
  12. 121
  13. 121
  14. 45
  15. Supplementary
  16. Neither
  17. 73
  18. 158
  19. Complementary
  20. 58
  21. 36
  22. 93
  23. 69
  24. 102
  25. 160
  26. 31
  27. 56
  28. Neither
  29. Complementary
  30. 61
  31. 60
  32. 122
  33. Supplementary
  34. 172
  35. 126
  36. Complementary
  37. 87
  38. 53
  39. Complementary
  40. 41

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