Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 946 · 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.Two straight lines cross each other. One of the angles formed is 119°. What is the angle next to it on the same line (in degrees)?
2. 2.Two straight lines cross each other. One of the angles formed is 111°. What is the angle vertically opposite to it (in degrees)?
3. 3.What is the complement of 45° (in degrees)?
4. 4.Two straight lines cross each other. One of the angles formed is 52°. What is the angle vertically opposite to it (in degrees)?
5. 5.What is the supplement of 160° (in degrees)?
6. 6.What is the supplement of 43° (in degrees)?
7. 7.Two straight lines cross each other. One of the angles formed is 103°. What is the angle vertically opposite to it (in degrees)?
8. 8.What is the supplement of 168° (in degrees)?
9. 9.What is the complement of 5° (in degrees)?
10. 10.What is the supplement of 11° (in degrees)?
11. 11.What is the complement of 23° (in degrees)?
12. 12.What is the supplement of 53° (in degrees)?
13. 13.What is the complement of 16° (in degrees)?
14. 14.Two straight lines cross each other. One of the angles formed is 24°. What is the angle vertically opposite to it (in degrees)?
15. 15.Two parallel lines are cut by a transversal. One angle is 39°. What is its corresponding angle (in degrees)?
16. 16.What is the supplement of 94° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One angle is 71°. What is its corresponding angle (in degrees)?
18. 18.What is the supplement of 166° (in degrees)?
19. 19.Two straight lines cross each other. One of the angles formed is 115°. What is the angle vertically opposite to it (in degrees)?
20. 20.Two straight lines cross each other. One of the angles formed is 114°. What is the angle vertically opposite to it (in degrees)?
21. 21.Two angles are supplementary. One is 12° more than the other. What is the bigger angle (in degrees)?
22. 22.Two parallel lines are cut by a transversal. One interior angle is 56°. What is its other interior angle on the same side of the transversal (in degrees)?
23. 23.What is the supplement of 93° (in degrees)?
24. 24.Two straight lines cross each other. One of the angles formed is 24°. What is the angle next to it on the same line (in degrees)?
25. 25.What is the complement of 56° (in degrees)?
26. 26.What is the complement of 24° (in degrees)?
27. 27.Two parallel lines are cut by a transversal. One angle is 115°. What is its corresponding angle (in degrees)?
28. 28.Are 30° and 160° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
29. 29.What is the complement of 79° (in degrees)?
30. 30.What is the complement of 30° (in degrees)?
31. 31.Two angles are supplementary. One is 130° more than the other. What is the bigger angle (in degrees)?
32. 32.What is the supplement of 74° (in degrees)?
33. 33.Two angles are supplementary. One is 14° more than the other. What is the bigger angle (in degrees)?
34. 34.What is the complement of 21° (in degrees)?
35. 35.Two straight lines cross each other. One of the angles formed is 89°. What is the angle vertically opposite to it (in degrees)?
36. 36.What is the supplement of 96° (in degrees)?
37. 37.What is the complement of 73° (in degrees)?
38. 38.Two straight lines cross each other. One of the angles formed is 124°. What is the angle vertically opposite to it (in degrees)?
39. 39.What is the complement of 64° (in degrees)?
40. 40.What is the complement of 18° (in degrees)?

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