← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 757 · 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.What is the complement of 8° (in degrees)?
  2. 2.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  3. 3.Two straight lines cross each other. One of the angles formed is 149°. What is the angle vertically opposite to it (in degrees)?
  4. 4.Are 61° and 119° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.What is the complement of 25° (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 47°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.Two parallel lines are cut by a transversal. One interior angle is 48°. What is its other interior angle on the same side of the transversal (in degrees)?
  9. 9.What is the supplement of 91° (in degrees)?
  10. 10.Two parallel lines are cut by a transversal. One interior angle is 32°. What is its other interior angle on the same side of the transversal (in degrees)?
  11. 11.Two parallel lines are cut by a transversal. One interior angle is 103°. What is its alternate interior angle (in degrees)?
  12. 12.What is the complement of 63° (in degrees)?
  13. 13.Two straight lines cross each other. One of the angles formed is 101°. What is the angle vertically opposite to it (in degrees)?
  14. 14.Are 50° and 40° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  15. 15.What is the supplement of 60° (in degrees)?
  16. 16.What is the complement of 16° (in degrees)?
  17. 17.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
  18. 18.Are 60° and 54° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  19. 19.What is the supplement of 56° (in degrees)?
  20. 20.What is the supplement of 52° (in degrees)?
  21. 21.What is the supplement of 108° (in degrees)?
  22. 22.What is the complement of 15° (in degrees)?
  23. 23.Two angles are supplementary. One is 100° more than the other. What is the bigger angle (in degrees)?
  24. 24.What is the supplement of 116° (in degrees)?
  25. 25.What is the supplement of 18° (in degrees)?
  26. 26.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One interior angle is 82°. What is its alternate interior angle (in degrees)?
  28. 28.Are 14° and 166° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  29. 29.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
  30. 30.What is the complement of 54° (in degrees)?
  31. 31.What is the supplement of 5° (in degrees)?
  32. 32.Two parallel lines are cut by a transversal. One angle is 102°. What is its corresponding angle (in degrees)?
  33. 33.What is the supplement of 132° (in degrees)?
  34. 34.Are 12° and 78° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  35. 35.Two parallel lines are cut by a transversal. One interior angle is 115°. What is its alternate interior angle (in degrees)?
  36. 36.Two straight lines cross each other. One of the angles formed is 127°. What is the angle vertically opposite to it (in degrees)?
  37. 37.What is the complement of 69° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One interior angle is 126°. What is its alternate interior angle (in degrees)?
  39. 39.What is the complement of 44° (in degrees)?
  40. 40.Two parallel lines are cut by a transversal. One angle is 142°. What is its corresponding angle (in degrees)?

Answer key

  1. 82
  2. 152
  3. 149
  4. Supplementary
  5. 65
  6. 43
  7. 133
  8. 132
  9. 89
  10. 148
  11. 103
  12. 27
  13. 101
  14. Complementary
  15. 120
  16. 74
  17. 52
  18. Neither
  19. 124
  20. 128
  21. 72
  22. 75
  23. 140
  24. 64
  25. 162
  26. 24
  27. 82
  28. Supplementary
  29. 59
  30. 36
  31. 175
  32. 102
  33. 48
  34. Complementary
  35. 115
  36. 127
  37. 21
  38. 126
  39. 46
  40. 142

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