Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 682 · 40 sums

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.

1. 1.Two angles are supplementary. One is 62° more than the other. What is the bigger angle (in degrees)?
2. 2.What is the supplement of 17° (in degrees)?
3. 3.What is the complement of 75° (in degrees)?
4. 4.Two angles are complementary. One is 2° more than the other. What is the bigger angle (in degrees)?
5. 5.What is the complement of 37° (in degrees)?
6. 6.What is the supplement of 45° (in degrees)?
7. 7.What is the complement of 43° (in degrees)?
8. 8.Two angles are supplementary. One is 120° more than the other. What is the bigger angle (in degrees)?
9. 9.What is the supplement of 27° (in degrees)?
10. 10.What is the supplement of 20° (in degrees)?
11. 11.Two straight lines cross each other. One of the angles formed is 31°. What is the angle vertically opposite to it (in degrees)?
12. 12.What is the supplement of 107° (in degrees)?
13. 13.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
14. 14.Two angles are supplementary. One is 26° more than the other. What is the bigger angle (in degrees)?
15. 15.Two straight lines cross each other. One of the angles formed is 122°. What is the angle vertically opposite to it (in degrees)?
16. 16.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
17. 17.What is the complement of 45° (in degrees)?
18. 18.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
19. 19.Two straight lines cross each other. One of the angles formed is 158°. What is the angle next to it on the same line (in degrees)?
20. 20.Two straight lines cross each other. One of the angles formed is 78°. What is the angle next to it on the same line (in degrees)?
21. 21.What is the supplement of 157° (in degrees)?
22. 22.Are 42° and 138° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
23. 23.What is the complement of 16° (in degrees)?
24. 24.What is the supplement of 68° (in degrees)?
25. 25.What is the supplement of 169° (in degrees)?
26. 26.Are 37° and 143° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
27. 27.Two parallel lines are cut by a transversal. One interior angle is 115°. What is its alternate interior angle (in degrees)?
28. 28.Are 77° and 75° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
29. 29.What is the supplement of 81° (in degrees)?
30. 30.What is the complement of 11° (in degrees)?
31. 31.Two straight lines cross each other. One of the angles formed is 58°. What is the angle next to it on the same line (in degrees)?
32. 32.Two angles are supplementary. One is 42° more than the other. What is the bigger angle (in degrees)?
33. 33.What is the supplement of 149° (in degrees)?
34. 34.What is the complement of 79° (in degrees)?
35. 35.What is the supplement of 61° (in degrees)?
36. 36.What is the complement of 42° (in degrees)?
37. 37.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
38. 38.What is the complement of 35° (in degrees)?
39. 39.Are 58° and 32° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
40. 40.Two angles are supplementary. One is 116° more than the other. What is the bigger angle (in degrees)?

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