Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 918 · 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.Are 43° and 45° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
2. 2.What is the complement of 75° (in degrees)?
3. 3.Two angles are complementary. One is 10° more than the other. What is the bigger angle (in degrees)?
4. 4.Two angles are complementary. One is 24° more than the other. What is the bigger angle (in degrees)?
5. 5.Two parallel lines are cut by a transversal. One angle is 54°. What is its corresponding angle (in degrees)?
6. 6.What is the complement of 84° (in degrees)?
7. 7.Are 26° and 50° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
8. 8.What is the supplement of 169° (in degrees)?
9. 9.Are 23° and 62° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
10. 10.What is the supplement of 160° (in degrees)?
11. 11.What is the complement of 82° (in degrees)?
12. 12.What is the supplement of 175° (in degrees)?
13. 13.What is the supplement of 115° (in degrees)?
14. 14.Are 26° and 141° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
15. 15.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
16. 16.Are 14° and 151° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
17. 17.What is the supplement of 98° (in degrees)?
18. 18.What is the supplement of 31° (in degrees)?
19. 19.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
20. 20.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
21. 21.What is the complement of 45° (in degrees)?
22. 22.Are 21° and 48° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
23. 23.What is the complement of 7° (in degrees)?
24. 24.What is the complement of 30° (in degrees)?
25. 25.Two straight lines cross each other. One of the angles formed is 81°. What is the angle next to it on the same line (in degrees)?
26. 26.Two straight lines cross each other. One of the angles formed is 89°. What is the angle next to it on the same line (in degrees)?
27. 27.What is the complement of 9° (in degrees)?
28. 28.Two angles are complementary. One is 48° more than the other. What is the bigger angle (in degrees)?
29. 29.Two parallel lines are cut by a transversal. One interior angle is 37°. What is its alternate interior angle (in degrees)?
30. 30.What is the complement of 13° (in degrees)?
31. 31.Two parallel lines are cut by a transversal. One interior angle is 127°. What is its other interior angle on the same side of the transversal (in degrees)?
32. 32.What is the supplement of 143° (in degrees)?
33. 33.Two straight lines cross each other. One of the angles formed is 25°. What is the angle next to it on the same line (in degrees)?
34. 34.Are 54° and 121° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
35. 35.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
36. 36.What is the complement of 54° (in degrees)?
37. 37.What is the complement of 68° (in degrees)?
38. 38.Two straight lines cross each other. One of the angles formed is 26°. What is the angle next to it on the same line (in degrees)?
39. 39.What is the complement of 73° (in degrees)?
40. 40.Are 57° and 33° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary

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