Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 524 · 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 complement of 14° (in degrees)?
2. 2.Two angles are complementary. One is 18° more than the other. What is the bigger angle (in degrees)?
3. 3.What is the supplement of 69° (in degrees)?
4. 4.Are 63° and 27° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
5. 5.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
6. 6.What is the complement of 8° (in degrees)?
7. 7.What is the complement of 55° (in degrees)?
8. 8.What is the supplement of 142° (in degrees)?
9. 9.Two parallel lines are cut by a transversal. One angle is 75°. What is its corresponding angle (in degrees)?
10. 10.Two straight lines cross each other. One of the angles formed is 156°. What is the angle next to it on the same line (in degrees)?
11. 11.Two angles are complementary. One is 8° more than the other. What is the bigger angle (in degrees)?
12. 12.What is the complement of 78° (in degrees)?
13. 13.Two angles are supplementary. One is 30° more than the other. What is the bigger angle (in degrees)?
14. 14.What is the complement of 19° (in degrees)?
15. 15.Two straight lines cross each other. One of the angles formed is 134°. What is the angle vertically opposite to it (in degrees)?
16. 16.What is the supplement of 87° (in degrees)?
17. 17.What is the supplement of 29° (in degrees)?
18. 18.What is the complement of 24° (in degrees)?
19. 19.What is the complement of 58° (in degrees)?
20. 20.What is the supplement of 77° (in degrees)?
21. 21.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)?
22. 22.Are 66° and 24° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
23. 23.Are 52° and 60° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
24. 24.What is the supplement of 39° (in degrees)?
25. 25.Two parallel lines are cut by a transversal. One angle is 98°. What is its corresponding angle (in degrees)?
26. 26.Are 71° and 19° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
27. 27.What is the complement of 84° (in degrees)?
28. 28.Are 59° and 79° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
29. 29.Two parallel lines are cut by a transversal. One angle is 45°. What is its corresponding angle (in degrees)?
30. 30.Two straight lines cross each other. One of the angles formed is 47°. What is the angle next to it on the same line (in degrees)?
31. 31.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)?
32. 32.Two angles are supplementary. One is 82° more than the other. What is the bigger angle (in degrees)?
33. 33.What is the complement of 18° (in degrees)?
34. 34.What is the complement of 52° (in degrees)?
35. 35.What is the complement of 30° (in degrees)?
36. 36.What is the supplement of 86° (in degrees)?
37. 37.Are 59° and 31° complementary, supplementary or neither? (a) Neither (b) Complementary (c) Supplementary
38. 38.What is the complement of 35° (in degrees)?
39. 39.Are 30° and 150° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
40. 40.What is the supplement of 79° (in degrees)?

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