Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 111 · 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 supplement of 167° (in degrees)?
2. 2.Are 68° and 22° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
3. 3.Two parallel lines are cut by a transversal. One interior angle is 84°. What is its alternate interior angle (in degrees)?
4. 4.Are 19° and 19° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
5. 5.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
6. 6.Two straight lines cross each other. One of the angles formed is 159°. What is the angle next to it on the same line (in degrees)?
7. 7.Are 27° and 153° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
8. 8.Are 19° and 71° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
9. 9.Are 77° and 13° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
10. 10.Two straight lines cross each other. One of the angles formed is 150°. What is the angle next to it on the same line (in degrees)?
11. 11.Are 53° and 167° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
12. 12.What is the complement of 80° (in degrees)?
13. 13.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
14. 14.What is the complement of 39° (in degrees)?
15. 15.What is the supplement of 96° (in degrees)?
16. 16.What is the supplement of 58° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One angle is 116°. What is its corresponding angle (in degrees)?
18. 18.What is the supplement of 11° (in degrees)?
19. 19.Are 68° and 112° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
20. 20.Two straight lines cross each other. One of the angles formed is 40°. What is the angle next to it on the same line (in degrees)?
21. 21.Are 33° and 147° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
22. 22.Are 57° and 33° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
23. 23.Are 74° and 156° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
24. 24.What is the supplement of 59° (in degrees)?
25. 25.Two parallel lines are cut by a transversal. One interior angle is 77°. What is its alternate interior angle (in degrees)?
26. 26.What is the complement of 42° (in degrees)?
27. 27.What is the complement of 34° (in degrees)?
28. 28.What is the complement of 6° (in degrees)?
29. 29.Two angles are supplementary. One is 140° more than the other. What is the bigger angle (in degrees)?
30. 30.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
31. 31.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
32. 32.Two angles are complementary. One is 22° more than the other. What is the bigger angle (in degrees)?
33. 33.Two parallel lines are cut by a transversal. One angle is 93°. What is its corresponding angle (in degrees)?
34. 34.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
35. 35.What is the complement of 17° (in degrees)?
36. 36.What is the supplement of 20° (in degrees)?
37. 37.What is the supplement of 35° (in degrees)?
38. 38.Are 22° and 158° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
39. 39.Two parallel lines are cut by a transversal. One angle is 131°. What is its corresponding angle (in degrees)?
40. 40.Two parallel lines are cut by a transversal. One interior angle is 46°. What is its alternate interior angle (in degrees)?

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