Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 705 · 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 parallel lines are cut by a transversal. One angle is 112°. What is its corresponding angle (in degrees)?
2. 2.What is the supplement of 113° (in degrees)?
3. 3.What is the complement of 51° (in degrees)?
4. 4.What is the complement of 68° (in degrees)?
5. 5.What is the complement of 27° (in degrees)?
6. 6.Two straight lines cross each other. One of the angles formed is 130°. What is the angle vertically opposite to it (in degrees)?
7. 7.What is the supplement of 161° (in degrees)?
8. 8.Are 23° and 143° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
9. 9.What is the supplement of 148° (in degrees)?
10. 10.What is the complement of 84° (in degrees)?
11. 11.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
12. 12.Two straight lines cross each other. One of the angles formed is 35°. What is the angle vertically opposite to it (in degrees)?
13. 13.What is the complement of 15° (in degrees)?
14. 14.Two angles are supplementary. One is 20° more than the other. What is the bigger angle (in degrees)?
15. 15.Are 53° and 37° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
16. 16.What is the supplement of 157° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One interior angle is 62°. What is its alternate interior angle (in degrees)?
18. 18.What is the complement of 46° (in degrees)?
19. 19.What is the complement of 7° (in degrees)?
20. 20.Are 64° and 129° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
21. 21.What is the complement of 53° (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 53°. What is the angle next to it on the same line (in degrees)?
23. 23.Two parallel lines are cut by a transversal. One interior angle is 83°. What is its other interior angle on the same side of the transversal (in degrees)?
24. 24.Two angles are supplementary. One is 112° more than the other. What is the bigger angle (in degrees)?
25. 25.Two parallel lines are cut by a transversal. One angle is 49°. What is its corresponding angle (in degrees)?
26. 26.Are 51° and 39° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
27. 27.Are 12° and 168° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
28. 28.What is the supplement of 169° (in degrees)?
29. 29.What is the complement of 26° (in degrees)?
30. 30.What is the complement of 24° (in degrees)?
31. 31.Are 76° and 14° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
32. 32.Two straight lines cross each other. One of the angles formed is 60°. What is the angle next to it on the same line (in degrees)?
33. 33.Two angles are complementary. One is 4° more than the other. What is the bigger angle (in degrees)?
34. 34.Two parallel lines are cut by a transversal. One angle is 79°. What is its corresponding angle (in degrees)?
35. 35.Two parallel lines are cut by a transversal. One angle is 50°. What is its corresponding angle (in degrees)?
36. 36.What is the supplement of 163° (in degrees)?
37. 37.What is the complement of 18° (in degrees)?
38. 38.Two parallel lines are cut by a transversal. One angle is 145°. What is its corresponding angle (in degrees)?
39. 39.What is the supplement of 44° (in degrees)?
40. 40.What is the complement of 19° (in degrees)?

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