← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 124 · 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 angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
  2. 2.Are 26° and 64° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  3. 3.Are 62° and 84° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  4. 4.Two angles are complementary. One is 38° more than the other. What is the bigger angle (in degrees)?
  5. 5.What is the supplement of 18° (in degrees)?
  6. 6.Two parallel lines are cut by a transversal. One interior angle is 57°. What is its alternate interior angle (in degrees)?
  7. 7.Two straight lines cross each other. One of the angles formed is 74°. What is the angle vertically opposite to it (in degrees)?
  8. 8.Are 45° and 45° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  9. 9.What is the supplement of 116° (in degrees)?
  10. 10.Two straight lines cross each other. One of the angles formed is 109°. What is the angle vertically opposite to it (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One angle is 114°. What is its corresponding angle (in degrees)?
  12. 12.Are 38° and 142° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  13. 13.What is the supplement of 41° (in degrees)?
  14. 14.Two parallel lines are cut by a transversal. One interior angle is 31°. What is its other interior angle on the same side of the transversal (in degrees)?
  15. 15.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
  16. 16.What is the complement of 85° (in degrees)?
  17. 17.Are 24° and 49° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  18. 18.What is the complement of 67° (in degrees)?
  19. 19.What is the supplement of 132° (in degrees)?
  20. 20.What is the complement of 38° (in degrees)?
  21. 21.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
  22. 22.What is the complement of 25° (in degrees)?
  23. 23.What is the complement of 13° (in degrees)?
  24. 24.Two straight lines cross each other. One of the angles formed is 76°. What is the angle vertically opposite to it (in degrees)?
  25. 25.What is the supplement of 13° (in degrees)?
  26. 26.What is the complement of 76° (in degrees)?
  27. 27.What is the supplement of 10° (in degrees)?
  28. 28.What is the supplement of 112° (in degrees)?
  29. 29.Are 44° and 136° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  30. 30.What is the complement of 62° (in degrees)?
  31. 31.What is the complement of 52° (in degrees)?
  32. 32.Are 80° and 100° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  33. 33.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
  34. 34.What is the complement of 19° (in degrees)?
  35. 35.What is the complement of 69° (in degrees)?
  36. 36.Are 72° and 18° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  37. 37.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 54°. What is its other interior angle on the same side of the transversal (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 152°. What is the angle vertically opposite to it (in degrees)?
  40. 40.What is the supplement of 134° (in degrees)?

Answer key

  1. 71
  2. Complementary
  3. Neither
  4. 64
  5. 162
  6. 57
  7. 74
  8. Complementary
  9. 64
  10. 109
  11. 114
  12. Supplementary
  13. 139
  14. 149
  15. 112
  16. 5
  17. Neither
  18. 23
  19. 48
  20. 52
  21. 49
  22. 65
  23. 77
  24. 76
  25. 167
  26. 14
  27. 170
  28. 68
  29. Supplementary
  30. 28
  31. 38
  32. Supplementary
  33. 153
  34. 71
  35. 21
  36. Complementary
  37. 113
  38. 126
  39. 152
  40. 46

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