Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 750 · 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 58° (in degrees)?
2. 2.What is the complement of 71° (in degrees)?
3. 3.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
4. 4.What is the supplement of 145° (in degrees)?
5. 5.Are 53° and 127° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
6. 6.What is the complement of 62° (in degrees)?
7. 7.Are 74° and 43° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
8. 8.Two angles are supplementary. One is 2° more than the other. What is the bigger angle (in degrees)?
9. 9.What is the supplement of 146° (in degrees)?
10. 10.Two parallel lines are cut by a transversal. One angle is 62°. What is its corresponding angle (in degrees)?
11. 11.What is the complement of 49° (in degrees)?
12. 12.What is the supplement of 119° (in degrees)?
13. 13.Two parallel lines are cut by a transversal. One interior angle is 144°. What is its alternate interior angle (in degrees)?
14. 14.Two straight lines cross each other. One of the angles formed is 25°. What is the angle vertically opposite to it (in degrees)?
15. 15.What is the supplement of 141° (in degrees)?
16. 16.What is the supplement of 111° (in degrees)?
17. 17.Two parallel lines are cut by a transversal. One interior angle is 55°. What is its alternate interior angle (in degrees)?
18. 18.What is the complement of 59° (in degrees)?
19. 19.Are 39° and 141° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
20. 20.Are 51° and 126° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
21. 21.Two straight lines cross each other. One of the angles formed is 49°. What is the angle vertically opposite to it (in degrees)?
22. 22.What is the supplement of 101° (in degrees)?
23. 23.What is the supplement of 38° (in degrees)?
24. 24.Two straight lines cross each other. One of the angles formed is 28°. What is the angle vertically opposite to it (in degrees)?
25. 25.What is the supplement of 42° (in degrees)?
26. 26.Two angles are supplementary. One is 60° more than the other. What is the bigger angle (in degrees)?
27. 27.Two angles are supplementary. One is 118° more than the other. What is the bigger angle (in degrees)?
28. 28.Two parallel lines are cut by a transversal. One angle is 69°. What is its corresponding angle (in degrees)?
29. 29.Two angles are supplementary. One is 48° more than the other. What is the bigger angle (in degrees)?
30. 30.What is the supplement of 161° (in degrees)?
31. 31.What is the supplement of 88° (in degrees)?
32. 32.What is the supplement of 50° (in degrees)?
33. 33.Two parallel lines are cut by a transversal. One interior angle is 118°. What is its other interior angle on the same side of the transversal (in degrees)?
34. 34.Two angles are supplementary. One is 24° more than the other. What is the bigger angle (in degrees)?
35. 35.What is the supplement of 72° (in degrees)?
36. 36.What is the supplement of 158° (in degrees)?
37. 37.What is the complement of 73° (in degrees)?
38. 38.Two parallel lines are cut by a transversal. One angle is 104°. What is its corresponding angle (in degrees)?
39. 39.What is the supplement of 83° (in degrees)?
40. 40.Are 47° and 43° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither

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