Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 374 · 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 interior angle is 94°. What is its other interior angle on the same side of the transversal (in degrees)?
2. 2.What is the supplement of 39° (in degrees)?
3. 3.Two straight lines cross each other. One of the angles formed is 144°. What is the angle vertically opposite to it (in degrees)?
4. 4.What is the complement of 74° (in degrees)?
5. 5.Are 34° and 146° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
6. 6.What is the supplement of 159° (in degrees)?
7. 7.What is the complement of 62° (in degrees)?
8. 8.Two parallel lines are cut by a transversal. One angle is 98°. What is its corresponding angle (in degrees)?
9. 9.What is the supplement of 76° (in degrees)?
10. 10.Are 37° and 147° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
11. 11.Two straight lines cross each other. One of the angles formed is 137°. What is the angle next to it on the same line (in degrees)?
12. 12.What is the complement of 9° (in degrees)?
13. 13.What is the supplement of 90° (in degrees)?
14. 14.What is the complement of 43° (in degrees)?
15. 15.What is the supplement of 12° (in degrees)?
16. 16.What is the complement of 59° (in degrees)?
17. 17.What is the supplement of 40° (in degrees)?
18. 18.What is the complement of 16° (in degrees)?
19. 19.Two angles are complementary. One is 62° more than the other. What is the bigger angle (in degrees)?
20. 20.Two angles are supplementary. One is 98° more than the other. What is the bigger angle (in degrees)?
21. 21.Two straight lines cross each other. One of the angles formed is 43°. What is the angle vertically opposite to it (in degrees)?
22. 22.What is the supplement of 95° (in degrees)?
23. 23.Two angles are supplementary. One is 8° more than the other. What is the bigger angle (in degrees)?
24. 24.Are 20° and 70° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
25. 25.What is the supplement of 8° (in degrees)?
26. 26.What is the supplement of 124° (in degrees)?
27. 27.What is the supplement of 110° (in degrees)?
28. 28.What is the complement of 23° (in degrees)?
29. 29.What is the complement of 58° (in degrees)?
30. 30.What is the complement of 66° (in degrees)?
31. 31.Two straight lines cross each other. One of the angles formed is 141°. What is the angle vertically opposite to it (in degrees)?
32. 32.Two angles are complementary. One is 14° more than the other. What is the bigger angle (in degrees)?
33. 33.Are 37° and 53° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
34. 34.What is the supplement of 42° (in degrees)?
35. 35.What is the supplement of 102° (in degrees)?
36. 36.Two angles are supplementary. One is 130° more than the other. What is the bigger angle (in degrees)?
37. 37.What is the supplement of 146° (in degrees)?
38. 38.Two straight lines cross each other. One of the angles formed is 59°. What is the angle vertically opposite to it (in degrees)?
39. 39.What is the complement of 15° (in degrees)?
40. 40.Two angles are supplementary. One is 110° more than the other. What is the bigger angle (in degrees)?

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