← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 707 · 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 65° (in degrees)?
  2. 2.Two straight lines cross each other. One of the angles formed is 135°. What is the angle next to it on the same line (in degrees)?
  3. 3.What is the supplement of 159° (in degrees)?
  4. 4.What is the supplement of 163° (in degrees)?
  5. 5.What is the supplement of 162° (in degrees)?
  6. 6.What is the complement of 83° (in degrees)?
  7. 7.What is the supplement of 98° (in degrees)?
  8. 8.Two straight lines cross each other. One of the angles formed is 92°. What is the angle next to it on the same line (in degrees)?
  9. 9.What is the complement of 24° (in degrees)?
  10. 10.What is the supplement of 49° (in degrees)?
  11. 11.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
  12. 12.Are 28° and 152° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  13. 13.Two parallel lines are cut by a transversal. One interior angle is 122°. What is its other interior angle on the same side of the transversal (in degrees)?
  14. 14.Are 41° and 139° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  15. 15.Two straight lines cross each other. One of the angles formed is 43°. What is the angle next to it on the same line (in degrees)?
  16. 16.Are 31° and 59° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  17. 17.Two angles are supplementary. One is 18° more than the other. What is the bigger angle (in degrees)?
  18. 18.What is the supplement of 52° (in degrees)?
  19. 19.Are 10° and 163° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  20. 20.Two parallel lines are cut by a transversal. One interior angle is 113°. What is its other interior angle on the same side of the transversal (in degrees)?
  21. 21.What is the supplement of 140° (in degrees)?
  22. 22.What is the complement of 61° (in degrees)?
  23. 23.Are 50° and 130° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  24. 24.Are 19° and 161° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  25. 25.What is the complement of 17° (in degrees)?
  26. 26.Two parallel lines are cut by a transversal. One angle is 57°. What is its corresponding angle (in degrees)?
  27. 27.Two straight lines cross each other. One of the angles formed is 60°. What is the angle vertically opposite to it (in degrees)?
  28. 28.Two parallel lines are cut by a transversal. One interior angle is 73°. What is its alternate interior angle (in degrees)?
  29. 29.Two straight lines cross each other. One of the angles formed is 66°. What is the angle vertically opposite to it (in degrees)?
  30. 30.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its other interior angle on the same side of the transversal (in degrees)?
  31. 31.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
  32. 32.What is the complement of 7° (in degrees)?
  33. 33.Two straight lines cross each other. One of the angles formed is 93°. What is the angle next to it on the same line (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 56°. What is its corresponding angle (in degrees)?
  35. 35.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?
  36. 36.What is the supplement of 39° (in degrees)?
  37. 37.Two straight lines cross each other. One of the angles formed is 125°. What is the angle next to it on the same line (in degrees)?
  38. 38.What is the complement of 59° (in degrees)?
  39. 39.Two straight lines cross each other. One of the angles formed is 31°. What is the angle next to it on the same line (in degrees)?
  40. 40.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?

Answer key

  1. 25
  2. 45
  3. 21
  4. 17
  5. 18
  6. 7
  7. 82
  8. 88
  9. 66
  10. 131
  11. 51
  12. Supplementary
  13. 58
  14. Supplementary
  15. 137
  16. Complementary
  17. 99
  18. 128
  19. Neither
  20. 67
  21. 40
  22. 29
  23. Supplementary
  24. Supplementary
  25. 73
  26. 57
  27. 60
  28. 73
  29. 66
  30. 134
  31. 143
  32. 83
  33. 87
  34. 56
  35. 44
  36. 141
  37. 55
  38. 31
  39. 149
  40. 118

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