← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 23 · 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 angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
  2. 2.Are 34° and 56° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  3. 3.What is the complement of 6° (in degrees)?
  4. 4.What is the complement of 13° (in degrees)?
  5. 5.What is the supplement of 147° (in degrees)?
  6. 6.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the supplement of 100° (in degrees)?
  8. 8.Two angles are supplementary. One is 130° more than the other. What is the bigger angle (in degrees)?
  9. 9.What is the complement of 18° (in degrees)?
  10. 10.What is the complement of 20° (in degrees)?
  11. 11.Are 71° and 11° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  12. 12.Two angles are complementary. One is 44° 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 87°. What is the angle vertically opposite to it (in degrees)?
  14. 14.What is the complement of 51° (in degrees)?
  15. 15.What is the complement of 78° (in degrees)?
  16. 16.What is the supplement of 51° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two angles are supplementary. One is 110° more than the other. What is the bigger angle (in degrees)?
  19. 19.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  20. 20.Are 49° and 65° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  21. 21.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  22. 22.Are 29° and 61° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  23. 23.Are 19° and 153° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  24. 24.Are 35° and 55° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  25. 25.Are 67° and 43° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  26. 26.Are 52° and 128° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  27. 27.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  28. 28.What is the supplement of 23° (in degrees)?
  29. 29.What is the complement of 48° (in degrees)?
  30. 30.Two angles are complementary. One is 10° 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 66°. What is its alternate interior angle (in degrees)?
  32. 32.What is the complement of 33° (in degrees)?
  33. 33.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  35. 35.What is the supplement of 64° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 128°. What is its alternate interior angle (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 130°. What is the angle next to it on the same line (in degrees)?
  38. 38.What is the supplement of 146° (in degrees)?
  39. 39.What is the supplement of 152° (in degrees)?
  40. 40.What is the complement of 34° (in degrees)?

Answer key

  1. 79
  2. Complementary
  3. 84
  4. 77
  5. 33
  6. 76
  7. 80
  8. 155
  9. 72
  10. 70
  11. Neither
  12. 67
  13. 87
  14. 39
  15. 12
  16. 129
  17. 52
  18. 145
  19. 65
  20. Neither
  21. 157
  22. Complementary
  23. Neither
  24. Complementary
  25. Neither
  26. Supplementary
  27. 46
  28. 157
  29. 42
  30. 50
  31. 66
  32. 57
  33. 103
  34. 47
  35. 116
  36. 128
  37. 50
  38. 34
  39. 28
  40. 56

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