← Lines and angles lesson New set →

Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 354 · 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 supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
  2. 2.Two angles are supplementary. One is 58° more than the other. What is the bigger angle (in degrees)?
  3. 3.What is the complement of 68° (in degrees)?
  4. 4.Are 27° and 63° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
  5. 5.Two straight lines cross each other. One of the angles formed is 109°. What is the angle vertically opposite to it (in degrees)?
  6. 6.Are 11° and 79° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
  7. 7.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its other interior angle on the same side of the transversal (in degrees)?
  8. 8.What is the complement of 36° (in degrees)?
  9. 9.What is the complement of 34° (in degrees)?
  10. 10.What is the complement of 35° (in degrees)?
  11. 11.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
  12. 12.What is the complement of 39° (in degrees)?
  13. 13.Two angles are supplementary. One is 42° more than the other. What is the bigger angle (in degrees)?
  14. 14.Are 43° and 137° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
  15. 15.What is the supplement of 153° (in degrees)?
  16. 16.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
  17. 17.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
  18. 18.Two straight lines cross each other. One of the angles formed is 51°. What is the angle next to it on the same line (in degrees)?
  19. 19.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
  20. 20.Two parallel lines are cut by a transversal. One angle is 140°. What is its corresponding angle (in degrees)?
  21. 21.Two parallel lines are cut by a transversal. One interior angle is 79°. What is its alternate interior angle (in degrees)?
  22. 22.Two straight lines cross each other. One of the angles formed is 57°. What is the angle next to it on the same line (in degrees)?
  23. 23.Are 69° and 111° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
  24. 24.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its other interior angle on the same side of the transversal (in degrees)?
  25. 25.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
  26. 26.What is the supplement of 158° (in degrees)?
  27. 27.Two parallel lines are cut by a transversal. One angle is 123°. What is its corresponding angle (in degrees)?
  28. 28.What is the complement of 82° (in degrees)?
  29. 29.What is the complement of 61° (in degrees)?
  30. 30.Are 45° and 135° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
  31. 31.Two parallel lines are cut by a transversal. One interior angle is 109°. What is its alternate interior angle (in degrees)?
  32. 32.Two straight lines cross each other. One of the angles formed is 145°. What is the angle next to it on the same line (in degrees)?
  33. 33.What is the complement of 70° (in degrees)?
  34. 34.Two parallel lines are cut by a transversal. One angle is 92°. What is its corresponding angle (in degrees)?
  35. 35.Are 21° and 87° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
  36. 36.What is the supplement of 56° (in degrees)?
  37. 37.What is the supplement of 39° (in degrees)?
  38. 38.Two parallel lines are cut by a transversal. One angle is 85°. What is its corresponding angle (in degrees)?
  39. 39.What is the supplement of 73° (in degrees)?
  40. 40.Two straight lines cross each other. One of the angles formed is 133°. What is the angle next to it on the same line (in degrees)?

Answer key

  1. 157
  2. 119
  3. 22
  4. Complementary
  5. 109
  6. Complementary
  7. 87
  8. 54
  9. 56
  10. 55
  11. 101
  12. 51
  13. 111
  14. Supplementary
  15. 27
  16. 123
  17. 143
  18. 129
  19. 152
  20. 140
  21. 79
  22. 123
  23. Supplementary
  24. 56
  25. 93
  26. 22
  27. 123
  28. 8
  29. 29
  30. Supplementary
  31. 109
  32. 35
  33. 20
  34. 92
  35. Neither
  36. 124
  37. 141
  38. 85
  39. 107
  40. 47

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