Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 532 · 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 88° (in degrees)?
2. 2.What is the complement of 10° (in degrees)?
3. 3.What is the complement of 20° (in degrees)?
4. 4.What is the complement of 83° (in degrees)?
5. 5.What is the supplement of 166° (in degrees)?
6. 6.What is the supplement of 132° (in degrees)?
7. 7.What is the supplement of 175° (in degrees)?
8. 8.Two parallel lines are cut by a transversal. One interior angle is 141°. What is its other interior angle on the same side of the transversal (in degrees)?
9. 9.Two angles are complementary. One is 30° more than the other. What is the bigger angle (in degrees)?
10. 10.Two straight lines cross each other. One of the angles formed is 147°. What is the angle next to it on the same line (in degrees)?
11. 11.What is the complement of 35° (in degrees)?
12. 12.Are 44° and 79° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
13. 13.Two parallel lines are cut by a transversal. One angle is 31°. What is its corresponding angle (in degrees)?
14. 14.What is the complement of 76° (in degrees)?
15. 15.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
16. 16.Are 33° and 57° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
17. 17.Two parallel lines are cut by a transversal. One angle is 51°. What is its corresponding angle (in degrees)?
18. 18.What is the supplement of 45° (in degrees)?
19. 19.Are 52° and 128° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
20. 20.Two parallel lines are cut by a transversal. One interior angle is 92°. What is its other interior angle on the same side of the transversal (in degrees)?
21. 21.What is the supplement of 98° (in degrees)?
22. 22.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)?
23. 23.Are 14° and 76° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
24. 24.What is the supplement of 72° (in degrees)?
25. 25.Are 74° and 16° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
26. 26.What is the supplement of 16° (in degrees)?
27. 27.What is the complement of 79° (in degrees)?
28. 28.What is the supplement of 81° (in degrees)?
29. 29.Two straight lines cross each other. One of the angles formed is 115°. What is the angle next to it on the same line (in degrees)?
30. 30.Two straight lines cross each other. One of the angles formed is 148°. What is the angle vertically opposite to it (in degrees)?
31. 31.Two angles are supplementary. One is 28° more than the other. What is the bigger angle (in degrees)?
32. 32.Two parallel lines are cut by a transversal. One angle is 33°. What is its corresponding angle (in degrees)?
33. 33.Two parallel lines are cut by a transversal. One angle is 64°. What is its corresponding angle (in degrees)?
34. 34.What is the complement of 53° (in degrees)?
35. 35.What is the complement of 58° (in degrees)?
36. 36.Two angles are supplementary. One is 90° more than the other. What is the bigger angle (in degrees)?
37. 37.Are 61° and 119° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
38. 38.What is the complement of 60° (in degrees)?
39. 39.What is the supplement of 47° (in degrees)?
40. 40.What is the complement of 22° (in degrees)?

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