← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 95 · 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 parallel lines are cut by a transversal. One interior angle is 148°. What is its other interior angle on the same side of the transversal (in degrees)?
  2. 2.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)?
  3. 3.Two straight lines cross each other. One of the angles formed is 97°. What is the angle next to it on the same line (in degrees)?
  4. 4.What is the complement of 62° (in degrees)?
  5. 5.What is the supplement of 52° (in degrees)?
  6. 6.What is the complement of 44° (in degrees)?
  7. 7.What is the supplement of 14° (in degrees)?
  8. 8.What is the complement of 7° (in degrees)?
  9. 9.What is the supplement of 150° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One angle is 70°. What is its corresponding angle (in degrees)?
  11. 11.Two angles are supplementary. One is 92° more than the other. What is the bigger angle (in degrees)?
  12. 12.Are 27° and 153° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  13. 13.Two straight lines cross each other. One of the angles formed is 65°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Are 29° and 61° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  15. 15.Two straight lines cross each other. One of the angles formed is 26°. What is the angle next to it on the same line (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 83°. What is the angle vertically opposite to it (in degrees)?
  17. 17.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)?
  18. 18.Two straight lines cross each other. One of the angles formed is 80°. What is the angle vertically opposite to it (in degrees)?
  19. 19.What is the complement of 77° (in degrees)?
  20. 20.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
  21. 21.Are 57° and 126° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  22. 22.What is the supplement of 6° (in degrees)?
  23. 23.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  24. 24.Are 19° and 23° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  25. 25.What is the complement of 84° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 89°. What is its alternate interior angle (in degrees)?
  27. 27.What is the complement of 64° (in degrees)?
  28. 28.What is the complement of 49° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its alternate interior angle (in degrees)?
  30. 30.Are 25° and 155° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  31. 31.Two straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its other interior angle on the same side of the transversal (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 105°. What is the angle vertically opposite to it (in degrees)?
  34. 34.What is the complement of 10° (in degrees)?
  35. 35.What is the supplement of 63° (in degrees)?
  36. 36.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
  37. 37.What is the supplement of 159° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 31°. What is its corresponding angle (in degrees)?
  39. 39.What is the complement of 43° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 149°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 32
  2. 160
  3. 83
  4. 28
  5. 128
  6. 46
  7. 166
  8. 83
  9. 30
  10. 70
  11. 136
  12. Supplementary
  13. 65
  14. Complementary
  15. 154
  16. 83
  17. 98
  18. 80
  19. 13
  20. 136
  21. Neither
  22. 174
  23. Supplementary
  24. Neither
  25. 6
  26. 89
  27. 26
  28. 41
  29. 136
  30. Supplementary
  31. 86
  32. 103
  33. 105
  34. 80
  35. 117
  36. 158
  37. 21
  38. 31
  39. 47
  40. 31

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