Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 56 · 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 144° (in degrees)?
3. 3.What is the supplement of 29° (in degrees)?
4. 4.Two straight lines cross each other. One of the angles formed is 118°. What is the angle vertically opposite to it (in degrees)?
5. 5.What is the complement of 44° (in degrees)?
6. 6.Two angles are complementary. One is 42° more than the other. What is the bigger angle (in degrees)?
7. 7.What is the complement of 35° (in degrees)?
8. 8.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
9. 9.Two angles are complementary. One is 56° more than the other. What is the bigger angle (in degrees)?
10. 10.What is the complement of 83° (in degrees)?
11. 11.What is the supplement of 84° (in degrees)?
12. 12.What is the complement of 85° (in degrees)?
13. 13.What is the supplement of 159° (in degrees)?
14. 14.Two parallel lines are cut by a transversal. One interior angle is 108°. What is its alternate interior angle (in degrees)?
15. 15.Are 40° and 140° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
16. 16.Two parallel lines are cut by a transversal. One angle is 80°. What is its corresponding angle (in degrees)?
17. 17.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
18. 18.What is the supplement of 92° (in degrees)?
19. 19.What is the supplement of 125° (in degrees)?
20. 20.What is the complement of 10° (in degrees)?
21. 21.Two straight lines cross each other. One of the angles formed is 115°. What is the angle vertically opposite to it (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 82°. What is the angle next to it on the same line (in degrees)?
23. 23.Two parallel lines are cut by a transversal. One angle is 58°. What is its corresponding angle (in degrees)?
24. 24.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
25. 25.Are 31° and 59° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
26. 26.What is the supplement of 114° (in degrees)?
27. 27.What is the complement of 61° (in degrees)?
28. 28.What is the supplement of 166° (in degrees)?
29. 29.Two parallel lines are cut by a transversal. One angle is 55°. What is its corresponding angle (in degrees)?
30. 30.Two straight lines cross each other. One of the angles formed is 102°. What is the angle next to it on the same line (in degrees)?
31. 31.What is the supplement of 33° (in degrees)?
32. 32.What is the complement of 58° (in degrees)?
33. 33.What is the complement of 32° (in degrees)?
34. 34.Are 15° and 75° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
35. 35.Two angles are supplementary. One is 22° more than the other. What is the bigger angle (in degrees)?
36. 36.Two angles are supplementary. One is 46° more than the other. What is the bigger angle (in degrees)?
37. 37.What is the complement of 57° (in degrees)?
38. 38.Two angles are complementary. One is 26° more than the other. What is the bigger angle (in degrees)?
39. 39.Two parallel lines are cut by a transversal. One angle is 36°. What is its corresponding angle (in degrees)?
40. 40.What is the complement of 63° (in degrees)?

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