← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 531 · 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 43° (in degrees)?
  2. 2.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
  3. 3.What is the complement of 84° (in degrees)?
  4. 4.What is the complement of 26° (in degrees)?
  5. 5.Two straight lines cross each other. One of the angles formed is 142°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Two straight lines cross each other. One of the angles formed is 129°. What is the angle next to it on the same line (in degrees)?
  7. 7.What is the complement of 82° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 135°. What is the angle vertically opposite to it (in degrees)?
  9. 9.What is the supplement of 117° (in degrees)?
  10. 10.What is the complement of 27° (in degrees)?
  11. 11.Are 26° and 154° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  12. 12.What is the supplement of 79° (in degrees)?
  13. 13.What is the complement of 5° (in degrees)?
  14. 14.What is the supplement of 69° (in degrees)?
  15. 15.Are 45° and 45° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  16. 16.What is the complement of 17° (in degrees)?
  17. 17.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its alternate interior angle (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 51°. What is the angle vertically opposite to it (in degrees)?
  19. 19.Two parallel lines are cut by a transversal. One interior angle is 43°. What is its other interior angle on the same side of the transversal (in degrees)?
  20. 20.Are 40° and 50° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  21. 21.Two parallel lines are cut by a transversal. One angle is 76°. What is its corresponding angle (in degrees)?
  22. 22.Are 39° and 141° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  23. 23.Two parallel lines are cut by a transversal. One interior angle is 98°. What is its alternate interior angle (in degrees)?
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 150°. What is its alternate interior angle (in degrees)?
  25. 25.What is the complement of 83° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One interior angle is 73°. What is its other interior angle on the same side of the transversal (in degrees)?
  27. 27.Are 71° and 19° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  28. 28.What is the supplement of 5° (in degrees)?
  29. 29.Two parallel lines are cut by a transversal. One interior angle is 104°. What is its other interior angle on the same side of the transversal (in degrees)?
  30. 30.Two straight lines cross each other. One of the angles formed is 157°. What is the angle vertically opposite to it (in degrees)?
  31. 31.What is the complement of 8° (in degrees)?
  32. 32.What is the supplement of 37° (in degrees)?
  33. 33.Are 68° and 112° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  34. 34.Are 50° and 149° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  35. 35.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
  36. 36.What is the supplement of 175° (in degrees)?
  37. 37.Two parallel lines are cut by a transversal. One interior angle is 44°. What is its other interior angle on the same side of the transversal (in degrees)?
  38. 38.Are 33° and 147° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  39. 39.What is the supplement of 99° (in degrees)?
  40. 40.Are 16° and 74° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary

Answer key

  1. 47
  2. 37
  3. 6
  4. 64
  5. 142
  6. 51
  7. 8
  8. 135
  9. 63
  10. 63
  11. Supplementary
  12. 101
  13. 85
  14. 111
  15. Complementary
  16. 73
  17. 140
  18. 51
  19. 137
  20. Complementary
  21. 76
  22. Supplementary
  23. 98
  24. 150
  25. 7
  26. 107
  27. Complementary
  28. 175
  29. 76
  30. 157
  31. 82
  32. 143
  33. Supplementary
  34. Neither
  35. 91
  36. 5
  37. 136
  38. Supplementary
  39. 81
  40. Complementary

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