Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 487 · 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 supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
2. 2.What is the supplement of 33° (in degrees)?
3. 3.Are 71° and 63° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
4. 4.Are 71° and 109° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
5. 5.What is the supplement of 64° (in degrees)?
6. 6.Two angles are complementary. One is 52° more than the other. What is the bigger angle (in degrees)?
7. 7.Two parallel lines are cut by a transversal. One angle is 134°. What is its corresponding angle (in degrees)?
8. 8.Are 66° and 114° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
9. 9.What is the supplement of 16° (in degrees)?
10. 10.What is the supplement of 44° (in degrees)?
11. 11.Two straight lines cross each other. One of the angles formed is 66°. What is the angle next to it on the same line (in degrees)?
12. 12.What is the complement of 63° (in degrees)?
13. 13.Two parallel lines are cut by a transversal. One angle is 121°. What is its corresponding angle (in degrees)?
14. 14.Two straight lines cross each other. One of the angles formed is 22°. What is the angle next to it on the same line (in degrees)?
15. 15.What is the supplement of 117° (in degrees)?
16. 16.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
17. 17.What is the supplement of 30° (in degrees)?
18. 18.What is the supplement of 83° (in degrees)?
19. 19.What is the complement of 8° (in degrees)?
20. 20.What is the complement of 24° (in degrees)?
21. 21.Two straight lines cross each other. One of the angles formed is 110°. What is the angle vertically opposite to it (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 139°. What is the angle vertically opposite to it (in degrees)?
23. 23.What is the supplement of 175° (in degrees)?
24. 24.Two parallel lines are cut by a transversal. One interior angle is 59°. What is its other interior angle on the same side of the transversal (in degrees)?
25. 25.What is the complement of 20° (in degrees)?
26. 26.What is the complement of 57° (in degrees)?
27. 27.Are 60° and 153° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
28. 28.Two angles are supplementary. One is 106° more than the other. What is the bigger angle (in degrees)?
29. 29.Are 58° and 32° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
30. 30.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its alternate interior angle (in degrees)?
31. 31.Two straight lines cross each other. One of the angles formed is 72°. What is the angle next to it on the same line (in degrees)?
32. 32.What is the complement of 41° (in degrees)?
33. 33.What is the complement of 32° (in degrees)?
34. 34.What is the supplement of 140° (in degrees)?
35. 35.Are 25° and 155° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
36. 36.What is the complement of 82° (in degrees)?
37. 37.What is the complement of 47° (in degrees)?
38. 38.What is the complement of 45° (in degrees)?
39. 39.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
40. 40.Two parallel lines are cut by a transversal. One interior angle is 50°. What is its alternate interior angle (in degrees)?

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