Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 391 · 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 53° (in degrees)?
2. 2.Are 68° and 22° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
3. 3.What is the complement of 30° (in degrees)?
4. 4.What is the supplement of 105° (in degrees)?
5. 5.Two angles are complementary. One is 16° more than the other. What is the bigger angle (in degrees)?
6. 6.What is the supplement of 35° (in degrees)?
7. 7.What is the supplement of 36° (in degrees)?
8. 8.What is the supplement of 33° (in degrees)?
9. 9.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
10. 10.Are 33° and 57° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
11. 11.Two parallel lines are cut by a transversal. One interior angle is 79°. What is its other interior angle on the same side of the transversal (in degrees)?
12. 12.Two straight lines cross each other. One of the angles formed is 112°. What is the angle next to it on the same line (in degrees)?
13. 13.What is the supplement of 166° (in degrees)?
14. 14.Two straight lines cross each other. One of the angles formed is 91°. What is the angle next to it on the same line (in degrees)?
15. 15.What is the supplement of 49° (in degrees)?
16. 16.What is the complement of 57° (in degrees)?
17. 17.What is the complement of 16° (in degrees)?
18. 18.Two parallel lines are cut by a transversal. One interior angle is 140°. What is its other interior angle on the same side of the transversal (in degrees)?
19. 19.What is the complement of 47° (in degrees)?
20. 20.Are 28° and 62° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
21. 21.Two parallel lines are cut by a transversal. One angle is 119°. What is its corresponding angle (in degrees)?
22. 22.What is the complement of 54° (in degrees)?
23. 23.Two straight lines cross each other. One of the angles formed is 52°. What is the angle next to it on the same line (in degrees)?
24. 24.What is the complement of 11° (in degrees)?
25. 25.Two straight lines cross each other. One of the angles formed is 46°. What is the angle next to it on the same line (in degrees)?
26. 26.What is the supplement of 107° (in degrees)?
27. 27.What is the complement of 20° (in degrees)?
28. 28.What is the complement of 80° (in degrees)?
29. 29.Two parallel lines are cut by a transversal. One interior angle is 96°. What is its other interior angle on the same side of the transversal (in degrees)?
30. 30.What is the complement of 56° (in degrees)?
31. 31.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
32. 32.What is the complement of 10° (in degrees)?
33. 33.What is the supplement of 70° (in degrees)?
34. 34.What is the supplement of 135° (in degrees)?
35. 35.Are 75° and 15° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
36. 36.Two angles are supplementary. One is 34° more than the other. What is the bigger angle (in degrees)?
37. 37.Two parallel lines are cut by a transversal. One interior angle is 54°. What is its alternate interior angle (in degrees)?
38. 38.What is the supplement of 27° (in degrees)?
39. 39.Two straight lines cross each other. One of the angles formed is 68°. What is the angle next to it on the same line (in degrees)?
40. 40.Two angles are complementary. One is 6° more than the other. What is the bigger angle (in degrees)?

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