← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 479 · 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 80° and 100° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  2. 2.What is the supplement of 56° (in degrees)?
  3. 3.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its alternate interior angle (in degrees)?
  4. 4.Are 52° and 164° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  5. 5.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  8. 8.What is the supplement of 113° (in degrees)?
  9. 9.What is the supplement of 88° (in degrees)?
  10. 10.What is the complement of 84° (in degrees)?
  11. 11.What is the supplement of 175° (in degrees)?
  12. 12.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
  13. 13.What is the supplement of 112° (in degrees)?
  14. 14.What is the complement of 66° (in degrees)?
  15. 15.Are 78° and 148° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  16. 16.What is the supplement of 24° (in degrees)?
  17. 17.Two straight lines cross each other. One of the angles formed is 45°. What is the angle vertically opposite to it (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 147°. What is the angle next to it on the same line (in degrees)?
  19. 19.What is the complement of 43° (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.Are 23° and 70° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.What is the supplement of 156° (in degrees)?
  23. 23.What is the supplement of 80° (in degrees)?
  24. 24.Are 21° and 69° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  25. 25.What is the complement of 67° (in degrees)?
  26. 26.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
  27. 27.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its other interior angle on the same side of the transversal (in degrees)?
  29. 29.What is the complement of 8° (in degrees)?
  30. 30.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)?
  31. 31.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  32. 32.What is the complement of 42° (in degrees)?
  33. 33.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)?
  34. 34.What is the supplement of 155° (in degrees)?
  35. 35.What is the complement of 11° (in degrees)?
  36. 36.What is the complement of 61° (in degrees)?
  37. 37.What is the complement of 9° (in degrees)?
  38. 38.What is the complement of 17° (in degrees)?
  39. 39.Are 45° and 45° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  40. 40.Are 58° and 42° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary

Answer key

  1. Supplementary
  2. 124
  3. 82
  4. Neither
  5. 114
  6. 50
  7. 60
  8. 67
  9. 92
  10. 6
  11. 5
  12. 77
  13. 68
  14. 24
  15. Neither
  16. 156
  17. 45
  18. 33
  19. 47
  20. 98
  21. Neither
  22. 24
  23. 100
  24. Complementary
  25. 23
  26. 75
  27. 73
  28. 71
  29. 82
  30. 138
  31. 76
  32. 48
  33. 160
  34. 25
  35. 79
  36. 29
  37. 81
  38. 73
  39. Complementary
  40. Neither

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