Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 663 · 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 136° (in degrees)?
2. 2.Are 21° and 12° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
3. 3.Are 26° and 154° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
4. 4.Two straight lines cross each other. One of the angles formed is 35°. What is the angle next to it on the same line (in degrees)?
5. 5.Are 53° and 37° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
6. 6.Two straight lines cross each other. One of the angles formed is 71°. What is the angle next to it on the same line (in degrees)?
7. 7.Are 48° and 41° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
8. 8.Two angles are supplementary. One is 6° more than the other. What is the bigger angle (in degrees)?
9. 9.Two angles are supplementary. One is 134° more than the other. What is the bigger angle (in degrees)?
10. 10.What is the complement of 60° (in degrees)?
11. 11.What is the supplement of 27° (in degrees)?
12. 12.What is the complement of 14° (in degrees)?
13. 13.Two angles are supplementary. One is 114° more than the other. What is the bigger angle (in degrees)?
14. 14.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
15. 15.What is the complement of 36° (in degrees)?
16. 16.What is the complement of 20° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One angle is 90°. What is its corresponding angle (in degrees)?
18. 18.What is the complement of 64° (in degrees)?
19. 19.What is the supplement of 60° (in degrees)?
20. 20.What is the complement of 68° (in degrees)?
21. 21.What is the complement of 45° (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 115°. What is the angle next to it on the same line (in degrees)?
23. 23.Are 38° and 142° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
24. 24.What is the supplement of 113° (in degrees)?
25. 25.Are 53° and 57° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
26. 26.Two straight lines cross each other. One of the angles formed is 26°. What is the angle next to it on the same line (in degrees)?
27. 27.What is the supplement of 39° (in degrees)?
28. 28.Two straight lines cross each other. One of the angles formed is 139°. What is the angle next to it on the same line (in degrees)?
29. 29.Two straight lines cross each other. One of the angles formed is 34°. What is the angle vertically opposite to it (in degrees)?
30. 30.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
31. 31.What is the complement of 5° (in degrees)?
32. 32.What is the complement of 63° (in degrees)?
33. 33.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
34. 34.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
35. 35.What is the supplement of 159° (in degrees)?
36. 36.Two angles are complementary. One is 66° more than the other. What is the bigger angle (in degrees)?
37. 37.What is the supplement of 149° (in degrees)?
38. 38.Are 74° and 106° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
39. 39.What is the supplement of 7° (in degrees)?
40. 40.What is the supplement of 74° (in degrees)?

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