Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 749 · 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.What is the complement of 53° (in degrees)?
2. 2.What is the supplement of 43° (in degrees)?
3. 3.Are 54° and 36° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
4. 4.What is the complement of 65° (in degrees)?
5. 5.Two parallel lines are cut by a transversal. One interior angle is 123°. What is its alternate interior angle (in degrees)?
6. 6.What is the complement of 67° (in degrees)?
7. 7.What is the complement of 43° (in degrees)?
8. 8.What is the supplement of 14° (in degrees)?
9. 9.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
10. 10.Are 38° and 105° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
11. 11.What is the complement of 37° (in degrees)?
12. 12.Two angles are supplementary. One is 66° more than the other. What is the bigger angle (in degrees)?
13. 13.What is the supplement of 48° (in degrees)?
14. 14.What is the supplement of 147° (in degrees)?
15. 15.What is the complement of 46° (in degrees)?
16. 16.What is the complement of 28° (in degrees)?
17. 17.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
18. 18.What is the supplement of 42° (in degrees)?
19. 19.What is the supplement of 24° (in degrees)?
20. 20.Two parallel lines are cut by a transversal. One interior angle is 102°. What is its alternate interior angle (in degrees)?
21. 21.Are 56° and 124° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
22. 22.Two parallel lines are cut by a transversal. One angle is 67°. What is its corresponding angle (in degrees)?
23. 23.Two angles are supplementary. One is 128° more than the other. What is the bigger angle (in degrees)?
24. 24.What is the complement of 36° (in degrees)?
25. 25.Two straight lines cross each other. One of the angles formed is 155°. What is the angle vertically opposite to it (in degrees)?
26. 26.What is the complement of 62° (in degrees)?
27. 27.What is the complement of 44° (in degrees)?
28. 28.Two parallel lines are cut by a transversal. One interior angle is 49°. What is its other interior angle on the same side of the transversal (in degrees)?
29. 29.Are 27° and 153° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
30. 30.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
31. 31.Two parallel lines are cut by a transversal. One angle is 94°. What is its corresponding angle (in degrees)?
32. 32.What is the supplement of 17° (in degrees)?
33. 33.Two straight lines cross each other. One of the angles formed is 33°. What is the angle vertically opposite to it (in degrees)?
34. 34.What is the supplement of 86° (in degrees)?
35. 35.What is the complement of 19° (in degrees)?
36. 36.What is the supplement of 166° (in degrees)?
37. 37.Two parallel lines are cut by a transversal. One angle is 142°. What is its corresponding angle (in degrees)?
38. 38.Two parallel lines are cut by a transversal. One angle is 82°. What is its corresponding angle (in degrees)?
39. 39.Are 47° and 127° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
40. 40.What is the supplement of 141° (in degrees)?

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