Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 884 · 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 138° (in degrees)?
2. 2.What is the supplement of 72° (in degrees)?
3. 3.What is the complement of 39° (in degrees)?
4. 4.Are 54° and 9° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
5. 5.Are 75° and 19° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
6. 6.Are 66° and 114° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
7. 7.What is the supplement of 171° (in degrees)?
8. 8.Two angles are supplementary. One is 84° more than the other. What is the bigger angle (in degrees)?
9. 9.What is the supplement of 115° (in degrees)?
10. 10.Two straight lines cross each other. One of the angles formed is 66°. What is the angle vertically opposite to it (in degrees)?
11. 11.What is the complement of 23° (in degrees)?
12. 12.What is the supplement of 5° (in degrees)?
13. 13.Are 43° and 15° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
14. 14.Two angles are supplementary. One is 38° more than the other. What is the bigger angle (in degrees)?
15. 15.Two angles are supplementary. One is 94° more than the other. What is the bigger angle (in degrees)?
16. 16.What is the complement of 67° (in degrees)?
17. 17.What is the supplement of 85° (in degrees)?
18. 18.What is the complement of 25° (in degrees)?
19. 19.What is the supplement of 24° (in degrees)?
20. 20.What is the supplement of 165° (in degrees)?
21. 21.Are 47° and 62° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
22. 22.Two straight lines cross each other. One of the angles formed is 153°. What is the angle vertically opposite to it (in degrees)?
23. 23.What is the supplement of 124° (in degrees)?
24. 24.What is the complement of 36° (in degrees)?
25. 25.Two straight lines cross each other. One of the angles formed is 123°. What is the angle vertically opposite to it (in degrees)?
26. 26.What is the complement of 6° (in degrees)?
27. 27.Two parallel lines are cut by a transversal. One interior angle is 86°. What is its alternate interior angle (in degrees)?
28. 28.What is the supplement of 99° (in degrees)?
29. 29.Two straight lines cross each other. One of the angles formed is 117°. What is the angle vertically opposite to it (in degrees)?
30. 30.What is the supplement of 53° (in degrees)?
31. 31.Are 16° and 38° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
32. 32.What is the complement of 19° (in degrees)?
33. 33.Two straight lines cross each other. One of the angles formed is 54°. What is the angle next to it on the same line (in degrees)?
34. 34.What is the complement of 10° (in degrees)?
35. 35.What is the complement of 42° (in degrees)?
36. 36.Two angles are complementary. One is 60° more than the other. What is the bigger angle (in degrees)?
37. 37.Two parallel lines are cut by a transversal. One angle is 37°. What is its corresponding angle (in degrees)?
38. 38.Are 35° and 55° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
39. 39.Two parallel lines are cut by a transversal. One interior angle is 55°. What is its alternate interior angle (in degrees)?
40. 40.Two straight lines cross each other. One of the angles formed is 95°. What is the angle next to it on the same line (in degrees)?

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