Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 174 · 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.Are 32° and 148° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
2. 2.What is the supplement of 55° (in degrees)?
3. 3.Two straight lines cross each other. One of the angles formed is 126°. What is the angle vertically opposite to it (in degrees)?
4. 4.What is the supplement of 95° (in degrees)?
5. 5.Two parallel lines are cut by a transversal. One angle is 73°. What is its corresponding angle (in degrees)?
6. 6.What is the supplement of 144° (in degrees)?
7. 7.What is the supplement of 111° (in degrees)?
8. 8.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
9. 9.What is the supplement of 166° (in degrees)?
10. 10.Are 64° and 26° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
11. 11.What is the supplement of 48° (in degrees)?
12. 12.What is the complement of 22° (in degrees)?
13. 13.Two straight lines cross each other. One of the angles formed is 157°. What is the angle vertically opposite to it (in degrees)?
14. 14.What is the complement of 60° (in degrees)?
15. 15.What is the supplement of 49° (in degrees)?
16. 16.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One interior angle is 136°. What is its alternate interior angle (in degrees)?
18. 18.What is the complement of 72° (in degrees)?
19. 19.What is the supplement of 11° (in degrees)?
20. 20.Two straight lines cross each other. One of the angles formed is 35°. What is the angle next to it on the same line (in degrees)?
21. 21.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 63°. What is the angle vertically opposite to it (in degrees)?
23. 23.Two straight lines cross each other. One of the angles formed is 82°. What is the angle next to it on the same line (in degrees)?
24. 24.Two parallel lines are cut by a transversal. One angle is 81°. What is its corresponding angle (in degrees)?
25. 25.What is the complement of 26° (in degrees)?
26. 26.Are 70° and 20° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
27. 27.What is the complement of 67° (in degrees)?
28. 28.What is the complement of 6° (in degrees)?
29. 29.Two parallel lines are cut by a transversal. One interior angle is 36°. What is its alternate interior angle (in degrees)?
30. 30.Are 73° and 143° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
31. 31.What is the complement of 59° (in degrees)?
32. 32.What is the complement of 37° (in degrees)?
33. 33.What is the supplement of 82° (in degrees)?
34. 34.What is the supplement of 171° (in degrees)?
35. 35.What is the supplement of 45° (in degrees)?
36. 36.Two straight lines cross each other. One of the angles formed is 130°. What is the angle next to it on the same line (in degrees)?
37. 37.Two straight lines cross each other. One of the angles formed is 139°. What is the angle next to it on the same line (in degrees)?
38. 38.What is the complement of 12° (in degrees)?
39. 39.What is the supplement of 65° (in degrees)?
40. 40.Are 24° and 20° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary

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