← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 341 · 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 complement of 24° (in degrees)?
  2. 2.Are 13° and 77° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  3. 3.What is the complement of 34° (in degrees)?
  4. 4.What is the complement of 43° (in degrees)?
  5. 5.Two parallel lines are cut by a transversal. One interior angle is 123°. What is its alternate interior angle (in degrees)?
  6. 6.What is the supplement of 10° (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two angles are supplementary. One is 102° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 62° (in degrees)?
  11. 11.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  12. 12.Are 60° and 30° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  13. 13.What is the supplement of 116° (in degrees)?
  14. 14.Are 50° and 40° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  15. 15.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its alternate interior angle (in degrees)?
  16. 16.What is the complement of 56° (in degrees)?
  17. 17.Are 24° and 19° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  18. 18.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 141°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  22. 22.Are 27° and 63° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  23. 23.What is the complement of 6° (in degrees)?
  24. 24.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)?
  25. 25.What is the supplement of 146° (in degrees)?
  26. 26.What is the supplement of 137° (in degrees)?
  27. 27.Are 71° and 139° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  28. 28.Are 70° and 62° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  29. 29.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the supplement of 64° (in degrees)?
  31. 31.What is the supplement of 55° (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 113°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the supplement of 28° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 42°. What is the angle next to it on the same line (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One angle is 141°. What is its corresponding angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 73°. What is the angle next to it on the same line (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its alternate interior angle (in degrees)?
  39. 39.Are 37° and 143° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  40. 40.What is the supplement of 170° (in degrees)?

Answer key

  1. 66
  2. Complementary
  3. 56
  4. 47
  5. 123
  6. 170
  7. 134
  8. 141
  9. 50
  10. 28
  11. 46
  12. Complementary
  13. 64
  14. Complementary
  15. 140
  16. 34
  17. Neither
  18. 73
  19. 37
  20. 141
  21. 75
  22. Complementary
  23. 84
  24. 121
  25. 34
  26. 43
  27. Neither
  28. Neither
  29. 63
  30. 116
  31. 125
  32. 113
  33. 69
  34. 152
  35. 138
  36. 141
  37. 107
  38. 136
  39. Supplementary
  40. 10

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets