Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 291 · 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 straight lines cross each other. One of the angles formed is 94°. What is the angle next to it on the same line (in degrees)?
2. 2.Two straight lines cross each other. One of the angles formed is 88°. What is the angle next to it on the same line (in degrees)?
3. 3.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
4. 4.What is the complement of 53° (in degrees)?
5. 5.What is the supplement of 92° (in degrees)?
6. 6.Are 32° and 148° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
7. 7.What is the supplement of 162° (in degrees)?
8. 8.What is the supplement of 138° (in degrees)?
9. 9.What is the supplement of 22° (in degrees)?
10. 10.Are 67° and 6° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
11. 11.What is the complement of 8° (in degrees)?
12. 12.Two parallel lines are cut by a transversal. One interior angle is 138°. What is its other interior angle on the same side of the transversal (in degrees)?
13. 13.What is the complement of 77° (in degrees)?
14. 14.Two parallel lines are cut by a transversal. One angle is 44°. What is its corresponding angle (in degrees)?
15. 15.What is the complement of 76° (in degrees)?
16. 16.What is the complement of 79° (in degrees)?
17. 17.Are 33° and 57° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
18. 18.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
19. 19.What is the supplement of 86° (in degrees)?
20. 20.What is the complement of 29° (in degrees)?
21. 21.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
22. 22.Are 64° and 116° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
23. 23.Two parallel lines are cut by a transversal. One angle is 60°. What is its corresponding angle (in degrees)?
24. 24.Are 16° and 74° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
25. 25.Two parallel lines are cut by a transversal. One interior angle is 103°. What is its alternate interior angle (in degrees)?
26. 26.What is the complement of 51° (in degrees)?
27. 27.Two straight lines cross each other. One of the angles formed is 61°. What is the angle vertically opposite to it (in degrees)?
28. 28.Two straight lines cross each other. One of the angles formed is 136°. What is the angle next to it on the same line (in degrees)?
29. 29.Two parallel lines are cut by a transversal. One angle is 89°. What is its corresponding angle (in degrees)?
30. 30.What is the complement of 54° (in degrees)?
31. 31.What is the supplement of 41° (in degrees)?
32. 32.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
33. 33.What is the supplement of 25° (in degrees)?
34. 34.What is the supplement of 15° (in degrees)?
35. 35.What is the supplement of 69° (in degrees)?
36. 36.Two angles are supplementary. One is 72° more than the other. What is the bigger angle (in degrees)?
37. 37.What is the complement of 9° (in degrees)?
38. 38.Two straight lines cross each other. One of the angles formed is 147°. What is the angle vertically opposite to it (in degrees)?
39. 39.Two angles are supplementary. One is 10° more than the other. What is the bigger angle (in degrees)?
40. 40.What is the supplement of 11° (in degrees)?

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