← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 208 · 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 61°. What is the angle vertically opposite to it (in degrees)?
  2. 2.What is the supplement of 37° (in degrees)?
  3. 3.What is the supplement of 146° (in degrees)?
  4. 4.Are 77° and 13° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  5. 5.Two straight lines cross each other. One of the angles formed is 35°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
  7. 7.What is the complement of 22° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 115°. What is the angle vertically opposite to it (in degrees)?
  9. 9.What is the supplement of 164° (in degrees)?
  10. 10.Are 33° and 36° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  11. 11.Two parallel lines are cut by a transversal. One angle is 78°. What is its corresponding angle (in degrees)?
  12. 12.Two straight lines cross each other. One of the angles formed is 138°. What is the angle vertically opposite to it (in degrees)?
  13. 13.What is the complement of 6° (in degrees)?
  14. 14.Are 25° and 155° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  15. 15.What is the supplement of 172° (in degrees)?
  16. 16.Two parallel lines are cut by a transversal. One angle is 118°. What is its corresponding angle (in degrees)?
  17. 17.What is the complement of 84° (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 30°. What is the angle vertically opposite to it (in degrees)?
  19. 19.What is the complement of 65° (in degrees)?
  20. 20.What is the supplement of 48° (in degrees)?
  21. 21.Two straight lines cross each other. One of the angles formed is 99°. What is the angle next to it on the same line (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  23. 23.What is the supplement of 119° (in degrees)?
  24. 24.Are 10° and 80° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.Two parallel lines are cut by a transversal. One interior angle is 125°. What is its alternate interior angle (in degrees)?
  26. 26.What is the supplement of 50° (in degrees)?
  27. 27.Are 23° and 67° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  28. 28.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
  31. 31.Two angles are complementary. One is 26° 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 132°. What is the angle vertically opposite to it (in degrees)?
  33. 33.Two angles are supplementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 129°. What is its corresponding angle (in degrees)?
  35. 35.What is the complement of 11° (in degrees)?
  36. 36.What is the complement of 36° (in degrees)?
  37. 37.What is the complement of 30° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 103°. What is its corresponding angle (in degrees)?
  39. 39.Two parallel lines are cut by a transversal. One angle is 149°. What is its corresponding angle (in degrees)?
  40. 40.Are 36° and 35° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary

Answer key

  1. 61
  2. 143
  3. 34
  4. Complementary
  5. 35
  6. 132
  7. 68
  8. 115
  9. 16
  10. Neither
  11. 78
  12. 138
  13. 84
  14. Supplementary
  15. 8
  16. 118
  17. 6
  18. 30
  19. 25
  20. 132
  21. 81
  22. 60
  23. 61
  24. Complementary
  25. 125
  26. 130
  27. Complementary
  28. 57
  29. 119
  30. 102
  31. 58
  32. 132
  33. 97
  34. 129
  35. 79
  36. 54
  37. 60
  38. 103
  39. 149
  40. Neither

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