Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 881 · 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 complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
2. 2.What is the complement of 40° (in degrees)?
3. 3.Are 55° and 35° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
4. 4.Two parallel lines are cut by a transversal. One interior angle is 87°. What is its other interior angle on the same side of the transversal (in degrees)?
5. 5.What is the supplement of 122° (in degrees)?
6. 6.What is the supplement of 46° (in degrees)?
7. 7.Two straight lines cross each other. One of the angles formed is 40°. What is the angle vertically opposite to it (in degrees)?
8. 8.What is the supplement of 132° (in degrees)?
9. 9.What is the complement of 30° (in degrees)?
10. 10.What is the complement of 75° (in degrees)?
11. 11.Are 55° and 160° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
12. 12.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
13. 13.What is the complement of 12° (in degrees)?
14. 14.What is the complement of 5° (in degrees)?
15. 15.Are 30° and 12° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
16. 16.Two straight lines cross each other. One of the angles formed is 42°. What is the angle next to it on the same line (in degrees)?
17. 17.What is the complement of 26° (in degrees)?
18. 18.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
19. 19.What is the complement of 82° (in degrees)?
20. 20.Two angles are complementary. One is 50° more than the other. What is the bigger angle (in degrees)?
21. 21.What is the supplement of 84° (in degrees)?
22. 22.What is the complement of 6° (in degrees)?
23. 23.Two straight lines cross each other. One of the angles formed is 154°. What is the angle next to it on the same line (in degrees)?
24. 24.Two straight lines cross each other. One of the angles formed is 28°. What is the angle next to it on the same line (in degrees)?
25. 25.What is the supplement of 155° (in degrees)?
26. 26.What is the complement of 14° (in degrees)?
27. 27.Two parallel lines are cut by a transversal. One interior angle is 124°. What is its alternate interior angle (in degrees)?
28. 28.What is the supplement of 173° (in degrees)?
29. 29.What is the complement of 21° (in degrees)?
30. 30.Two straight lines cross each other. One of the angles formed is 37°. What is the angle vertically opposite to it (in degrees)?
31. 31.Two angles are supplementary. One is 52° more than the other. What is the bigger angle (in degrees)?
32. 32.Two straight lines cross each other. One of the angles formed is 145°. What is the angle vertically opposite to it (in degrees)?
33. 33.What is the supplement of 80° (in degrees)?
34. 34.Two straight lines cross each other. One of the angles formed is 20°. What is the angle vertically opposite to it (in degrees)?
35. 35.What is the supplement of 88° (in degrees)?
36. 36.What is the supplement of 47° (in degrees)?
37. 37.What is the supplement of 24° (in degrees)?
38. 38.What is the complement of 33° (in degrees)?
39. 39.Two straight lines cross each other. One of the angles formed is 99°. What is the angle next to it on the same line (in degrees)?
40. 40.What is the complement of 65° (in degrees)?

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