Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 233 · 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 21° (in degrees)?
2. 2.Two angles are supplementary. One is 74° more than the other. What is the bigger angle (in degrees)?
3. 3.Are 76° and 14° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
4. 4.What is the complement of 10° (in degrees)?
5. 5.What is the supplement of 25° (in degrees)?
6. 6.Two parallel lines are cut by a transversal. One interior angle is 63°. What is its other interior angle on the same side of the transversal (in degrees)?
7. 7.What is the complement of 18° (in degrees)?
8. 8.Two angles are supplementary. One is 124° more than the other. What is the bigger angle (in degrees)?
9. 9.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its other interior angle on the same side of the transversal (in degrees)?
10. 10.Two parallel lines are cut by a transversal. One angle is 66°. What is its corresponding angle (in degrees)?
11. 11.Two straight lines cross each other. One of the angles formed is 134°. What is the angle vertically opposite to it (in degrees)?
12. 12.What is the complement of 22° (in degrees)?
13. 13.Are 46° and 99° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
14. 14.What is the complement of 85° (in degrees)?
15. 15.What is the complement of 37° (in degrees)?
16. 16.Two straight lines cross each other. One of the angles formed is 48°. What is the angle vertically opposite to it (in degrees)?
17. 17.What is the supplement of 112° (in degrees)?
18. 18.What is the supplement of 55° (in degrees)?
19. 19.Two parallel lines are cut by a transversal. One angle is 122°. What is its corresponding angle (in degrees)?
20. 20.Are 68° and 59° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
21. 21.Two angles are complementary. One is 54° more than the other. What is the bigger angle (in degrees)?
22. 22.What is the supplement of 167° (in degrees)?
23. 23.What is the complement of 58° (in degrees)?
24. 24.What is the complement of 46° (in degrees)?
25. 25.What is the supplement of 143° (in degrees)?
26. 26.Are 48° and 42° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
27. 27.What is the supplement of 7° (in degrees)?
28. 28.Two parallel lines are cut by a transversal. One interior angle is 61°. What is its alternate interior angle (in degrees)?
29. 29.What is the complement of 19° (in degrees)?
30. 30.What is the complement of 68° (in degrees)?
31. 31.What is the complement of 9° (in degrees)?
32. 32.What is the supplement of 29° (in degrees)?
33. 33.Are 77° and 61° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
34. 34.Two parallel lines are cut by a transversal. One interior angle is 146°. What is its other interior angle on the same side of the transversal (in degrees)?
35. 35.What is the supplement of 174° (in degrees)?
36. 36.Two parallel lines are cut by a transversal. One angle is 124°. What is its corresponding angle (in degrees)?
37. 37.What is the complement of 7° (in degrees)?
38. 38.Are 56° and 34° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
39. 39.Are 46° and 44° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
40. 40.Two straight lines cross each other. One of the angles formed is 28°. What is the angle vertically opposite to it (in degrees)?

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