Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 451 · 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 35° (in degrees)?
2. 2.What is the supplement of 175° (in degrees)?
3. 3.What is the supplement of 124° (in degrees)?
4. 4.Two angles are supplementary. One is 34° more than the other. What is the bigger angle (in degrees)?
5. 5.Two parallel lines are cut by a transversal. One angle is 62°. What is its corresponding angle (in degrees)?
6. 6.What is the complement of 9° (in degrees)?
7. 7.What is the complement of 5° (in degrees)?
8. 8.Two straight lines cross each other. One of the angles formed is 81°. What is the angle next to it on the same line (in degrees)?
9. 9.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
10. 10.What is the supplement of 62° (in degrees)?
11. 11.Two angles are supplementary. One is 44° more than the other. What is the bigger angle (in degrees)?
12. 12.Two angles are complementary. One is 44° more than the other. What is the bigger angle (in degrees)?
13. 13.What is the complement of 48° (in degrees)?
14. 14.What is the complement of 49° (in degrees)?
15. 15.What is the supplement of 157° (in degrees)?
16. 16.Two straight lines cross each other. One of the angles formed is 59°. What is the angle next to it on the same line (in degrees)?
17. 17.Two angles are complementary. One is 12° more than the other. What is the bigger angle (in degrees)?
18. 18.What is the complement of 11° (in degrees)?
19. 19.What is the complement of 79° (in degrees)?
20. 20.Two straight lines cross each other. One of the angles formed is 126°. What is the angle next to it on the same line (in degrees)?
21. 21.What is the complement of 35° (in degrees)?
22. 22.Two parallel lines are cut by a transversal. One interior angle is 129°. What is its alternate interior angle (in degrees)?
23. 23.Two straight lines cross each other. One of the angles formed is 148°. What is the angle next to it on the same line (in degrees)?
24. 24.Two straight lines cross each other. One of the angles formed is 20°. What is the angle next to it on the same line (in degrees)?
25. 25.What is the supplement of 20° (in degrees)?
26. 26.Two straight lines cross each other. One of the angles formed is 47°. What is the angle next to it on the same line (in degrees)?
27. 27.Two straight lines cross each other. One of the angles formed is 122°. What is the angle vertically opposite to it (in degrees)?
28. 28.What is the supplement of 49° (in degrees)?
29. 29.What is the complement of 14° (in degrees)?
30. 30.What is the complement of 58° (in degrees)?
31. 31.What is the supplement of 40° (in degrees)?
32. 32.Two parallel lines are cut by a transversal. One angle is 135°. What is its corresponding angle (in degrees)?
33. 33.Are 79° and 101° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
34. 34.What is the complement of 13° (in degrees)?
35. 35.What is the supplement of 90° (in degrees)?
36. 36.Are 55° and 125° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
37. 37.What is the complement of 53° (in degrees)?
38. 38.Two parallel lines are cut by a transversal. One angle is 53°. What is its corresponding angle (in degrees)?
39. 39.Two angles are supplementary. One is 70° more than the other. What is the bigger angle (in degrees)?
40. 40.What is the complement of 62° (in degrees)?

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