Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 933 · 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.Are 19° and 71° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
2. 2.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
3. 3.Two straight lines cross each other. One of the angles formed is 90°. What is the angle next to it on the same line (in degrees)?
4. 4.What is the complement of 80° (in degrees)?
5. 5.What is the complement of 8° (in degrees)?
6. 6.What is the supplement of 136° (in degrees)?
7. 7.What is the supplement of 74° (in degrees)?
8. 8.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
9. 9.Two straight lines cross each other. One of the angles formed is 136°. What is the angle vertically opposite to it (in degrees)?
10. 10.What is the complement of 82° (in degrees)?
11. 11.What is the complement of 60° (in degrees)?
12. 12.Two parallel lines are cut by a transversal. One angle is 106°. What is its corresponding angle (in degrees)?
13. 13.What is the supplement of 170° (in degrees)?
14. 14.What is the complement of 32° (in degrees)?
15. 15.What is the supplement of 160° (in degrees)?
16. 16.What is the supplement of 135° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One interior angle is 93°. What is its other interior angle on the same side of the transversal (in degrees)?
18. 18.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
19. 19.What is the complement of 58° (in degrees)?
20. 20.What is the supplement of 40° (in degrees)?
21. 21.What is the complement of 64° (in degrees)?
22. 22.Two angles are complementary. One is 58° more than the other. What is the bigger angle (in degrees)?
23. 23.What is the complement of 16° (in degrees)?
24. 24.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
25. 25.Are 26° and 131° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
26. 26.What is the supplement of 23° (in degrees)?
27. 27.Are 49° and 49° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
28. 28.What is the supplement of 148° (in degrees)?
29. 29.Two angles are complementary. One is 32° more than the other. What is the bigger angle (in degrees)?
30. 30.What is the supplement of 159° (in degrees)?
31. 31.What is the complement of 28° (in degrees)?
32. 32.Two straight lines cross each other. One of the angles formed is 127°. What is the angle vertically opposite to it (in degrees)?
33. 33.What is the complement of 29° (in degrees)?
34. 34.Are 74° and 106° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
35. 35.Are 54° and 126° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
36. 36.What is the supplement of 171° (in degrees)?
37. 37.What is the complement of 63° (in degrees)?
38. 38.Two parallel lines are cut by a transversal. One angle is 117°. What is its corresponding angle (in degrees)?
39. 39.What is the complement of 78° (in degrees)?
40. 40.Two straight lines cross each other. One of the angles formed is 160°. What is the angle next to it on the same line (in degrees)?

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