← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 662 · 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 supplement of 133° (in degrees)?
  2. 2.What is the complement of 11° (in degrees)?
  3. 3.Are 21° and 29° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  4. 4.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  5. 5.Are 63° and 27° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  6. 6.What is the complement of 39° (in degrees)?
  7. 7.Are 75° and 105° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  8. 8.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
  9. 9.Two angles are supplementary. One is 100° more than the other. What is the bigger angle (in degrees)?
  10. 10.What is the complement of 67° (in degrees)?
  11. 11.Two angles are supplementary. One is 104° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 66° (in degrees)?
  13. 13.What is the complement of 31° (in degrees)?
  14. 14.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  15. 15.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 95°. What is the angle vertically opposite to it (in degrees)?
  17. 17.What is the complement of 29° (in degrees)?
  18. 18.What is the complement of 13° (in degrees)?
  19. 19.What is the complement of 59° (in degrees)?
  20. 20.What is the complement of 25° (in degrees)?
  21. 21.What is the complement of 53° (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 75°. What is the angle vertically opposite to it (in degrees)?
  23. 23.What is the supplement of 85° (in degrees)?
  24. 24.Are 62° and 28° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  25. 25.What is the supplement of 14° (in degrees)?
  26. 26.Are 31° and 59° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  27. 27.Are 43° and 137° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  28. 28.Are 45° and 26° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  29. 29.Are 61° and 29° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  30. 30.Two straight lines cross each other. One of the angles formed is 126°. What is the angle next to it on the same line (in degrees)?
  31. 31.Two angles are supplementary. One is 108° more than the other. What is the bigger angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the supplement of 15° (in degrees)?
  35. 35.Two straight lines cross each other. One of the angles formed is 90°. What is the angle vertically opposite to it (in degrees)?
  36. 36.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the supplement of 103° (in degrees)?
  38. 38.Are 68° and 112° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  39. 39.Two straight lines cross each other. One of the angles formed is 20°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 47
  2. 79
  3. Neither
  4. 50
  5. Complementary
  6. 51
  7. Supplementary
  8. 138
  9. 140
  10. 23
  11. 142
  12. 24
  13. 59
  14. 118
  15. 49
  16. 95
  17. 61
  18. 77
  19. 31
  20. 65
  21. 37
  22. 75
  23. 95
  24. Complementary
  25. 166
  26. Complementary
  27. Supplementary
  28. Neither
  29. Complementary
  30. 54
  31. 144
  32. 34
  33. 132
  34. 165
  35. 90
  36. 66
  37. 77
  38. Supplementary
  39. 160
  40. 53

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