← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 967 · 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 straight lines cross each other. One of the angles formed is 151°. What is the angle next to it on the same line (in degrees)?
  2. 2.What is the complement of 16° (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 76°. What is the angle vertically opposite to it (in degrees)?
  4. 4.What is the complement of 76° (in degrees)?
  5. 5.What is the complement of 51° (in degrees)?
  6. 6.What is the supplement of 100° (in degrees)?
  7. 7.Are 56° and 124° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  8. 8.Two straight lines cross each other. One of the angles formed is 90°. What is the angle vertically opposite to it (in degrees)?
  9. 9.Two parallel lines are cut by a transversal. One interior angle is 43°. What is its alternate interior angle (in degrees)?
  10. 10.Are 57° and 33° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  11. 11.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 34° (in degrees)?
  13. 13.Are 51° and 39° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  14. 14.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
  15. 15.What is the supplement of 154° (in degrees)?
  16. 16.What is the supplement of 120° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One angle is 132°. What is its corresponding angle (in degrees)?
  18. 18.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
  19. 19.What is the supplement of 13° (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
  21. 21.Are 21° and 144° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  22. 22.Two angles are complementary. One is 36° more than the other. What is the bigger angle (in degrees)?
  23. 23.What is the supplement of 12° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 98°. What is the angle next to it on the same line (in degrees)?
  25. 25.Two angles are supplementary. One is 78° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 68° (in degrees)?
  27. 27.Are 30° and 80° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  28. 28.Are 79° and 12° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  29. 29.What is the supplement of 8° (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 49°. What is the angle next to it on the same line (in degrees)?
  31. 31.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
  32. 32.Are 71° and 20° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  33. 33.Two straight lines cross each other. One of the angles formed is 43°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two straight lines cross each other. One of the angles formed is 140°. What is the angle vertically opposite to it (in degrees)?
  35. 35.What is the complement of 33° (in degrees)?
  36. 36.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its alternate interior angle (in degrees)?
  37. 37.What is the complement of 54° (in degrees)?
  38. 38.Are 69° and 123° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  39. 39.Are 35° and 80° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  40. 40.Two parallel lines are cut by a transversal. One angle is 102°. What is its corresponding angle (in degrees)?

Answer key

  1. 29
  2. 74
  3. 76
  4. 14
  5. 39
  6. 80
  7. Supplementary
  8. 90
  9. 43
  10. Complementary
  11. 64
  12. 56
  13. Complementary
  14. 111
  15. 26
  16. 60
  17. 132
  18. 47
  19. 167
  20. 138
  21. Neither
  22. 63
  23. 168
  24. 82
  25. 129
  26. 112
  27. Neither
  28. Neither
  29. 172
  30. 131
  31. 65
  32. Neither
  33. 137
  34. 140
  35. 57
  36. 60
  37. 36
  38. Neither
  39. Neither
  40. 102

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