Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 655 · 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 50° (in degrees)?
2. 2.What is the supplement of 123° (in degrees)?
3. 3.What is the complement of 17° (in degrees)?
4. 4.Two straight lines cross each other. One of the angles formed is 36°. What is the angle vertically opposite to it (in degrees)?
5. 5.Two parallel lines are cut by a transversal. One angle is 73°. What is its corresponding angle (in degrees)?
6. 6.Two angles are supplementary. One is 126° more than the other. What is the bigger angle (in degrees)?
7. 7.Are 30° and 150° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
8. 8.Two angles are supplementary. One is 56° more than the other. What is the bigger angle (in degrees)?
9. 9.Two angles are supplementary. One is 96° more than the other. What is the bigger angle (in degrees)?
10. 10.Are 45° and 135° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
11. 11.Are 14° and 76° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
12. 12.Two angles are supplementary. One is 8° more than the other. What is the bigger angle (in degrees)?
13. 13.What is the complement of 61° (in degrees)?
14. 14.Two angles are supplementary. One is 136° more than the other. What is the bigger angle (in degrees)?
15. 15.Two parallel lines are cut by a transversal. One angle is 139°. What is its corresponding angle (in degrees)?
16. 16.Are 36° and 54° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
17. 17.Two parallel lines are cut by a transversal. One interior angle is 96°. What is its alternate interior angle (in degrees)?
18. 18.Two parallel lines are cut by a transversal. One interior angle is 106°. What is its other interior angle on the same side of the transversal (in degrees)?
19. 19.Are 27° and 153° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
20. 20.Two straight lines cross each other. One of the angles formed is 157°. What is the angle vertically opposite to it (in degrees)?
21. 21.Two parallel lines are cut by a transversal. One interior angle is 121°. What is its alternate interior angle (in degrees)?
22. 22.What is the supplement of 93° (in degrees)?
23. 23.Two parallel lines are cut by a transversal. One angle is 138°. What is its corresponding angle (in degrees)?
24. 24.Are 49° and 84° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary
25. 25.What is the supplement of 14° (in degrees)?
26. 26.What is the complement of 69° (in degrees)?
27. 27.Two parallel lines are cut by a transversal. One interior angle is 60°. What is its alternate interior angle (in degrees)?
28. 28.Two straight lines cross each other. One of the angles formed is 126°. What is the angle vertically opposite to it (in degrees)?
29. 29.Two straight lines cross each other. One of the angles formed is 82°. What is the angle next to it on the same line (in degrees)?
30. 30.Two parallel lines are cut by a transversal. One angle is 72°. What is its corresponding angle (in degrees)?
31. 31.What is the supplement of 59° (in degrees)?
32. 32.Are 52° and 38° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
33. 33.Two parallel lines are cut by a transversal. One interior angle is 147°. What is its alternate interior angle (in degrees)?
34. 34.Two angles are complementary. One is 68° more than the other. What is the bigger angle (in degrees)?
35. 35.Two straight lines cross each other. One of the angles formed is 47°. What is the angle vertically opposite to it (in degrees)?
36. 36.Are 63° and 132° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
37. 37.Two angles are complementary. One is 20° more than the other. What is the bigger angle (in degrees)?
38. 38.Two straight lines cross each other. One of the angles formed is 106°. What is the angle next to it on the same line (in degrees)?
39. 39.Two straight lines cross each other. One of the angles formed is 71°. What is the angle next to it on the same line (in degrees)?
40. 40.Are 62° and 93° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary

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