Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 229 · 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 90° (in degrees)?
2. 2.Are 20° and 160° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
3. 3.Two straight lines cross each other. One of the angles formed is 33°. What is the angle next to it on the same line (in degrees)?
4. 4.What is the supplement of 23° (in degrees)?
5. 5.What is the complement of 14° (in degrees)?
6. 6.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
7. 7.Are 80° and 10° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
8. 8.What is the supplement of 118° (in degrees)?
9. 9.Two angles are complementary. One is 64° more than the other. What is the bigger angle (in degrees)?
10. 10.What is the complement of 46° (in degrees)?
11. 11.Two parallel lines are cut by a transversal. One interior angle is 44°. 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 103°. What is the angle vertically opposite to it (in degrees)?
13. 13.Are 48° and 132° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
14. 14.What is the supplement of 82° (in degrees)?
15. 15.Two angles are supplementary. One is 122° more than the other. What is the bigger angle (in degrees)?
16. 16.What is the complement of 84° (in degrees)?
17. 17.What is the complement of 53° (in degrees)?
18. 18.Two angles are supplementary. One is 4° more than the other. What is the bigger angle (in degrees)?
19. 19.Are 16° and 74° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
20. 20.What is the supplement of 48° (in degrees)?
21. 21.Are 32° and 148° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
22. 22.What is the supplement of 78° (in degrees)?
23. 23.Two straight lines cross each other. One of the angles formed is 96°. What is the angle next to it on the same line (in degrees)?
24. 24.Two angles are supplementary. One is 138° more than the other. What is the bigger angle (in degrees)?
25. 25.Two straight lines cross each other. One of the angles formed is 83°. What is the angle next to it on the same line (in degrees)?
26. 26.What is the supplement of 19° (in degrees)?
27. 27.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)?
28. 28.What is the supplement of 158° (in degrees)?
29. 29.What is the supplement of 101° (in degrees)?
30. 30.Two angles are complementary. One is 28° more than the other. What is the bigger angle (in degrees)?
31. 31.Two straight lines cross each other. One of the angles formed is 75°. What is the angle vertically opposite to it (in degrees)?
32. 32.Two straight lines cross each other. One of the angles formed is 70°. What is the angle vertically opposite to it (in degrees)?
33. 33.What is the supplement of 54° (in degrees)?
34. 34.What is the supplement of 109° (in degrees)?
35. 35.What is the complement of 82° (in degrees)?
36. 36.What is the supplement of 87° (in degrees)?
37. 37.What is the supplement of 170° (in degrees)?
38. 38.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
39. 39.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
40. 40.What is the supplement of 119° (in degrees)?

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