Class 7 Maths Worksheet: Lines and Angles

Maths worksheets lesson 52: Lines and angles · Set 488 · 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 straight lines cross each other. One of the angles formed is 148°. What is the angle vertically opposite to it (in degrees)?
2. 2.What is the supplement of 138° (in degrees)?
3. 3.Two parallel lines are cut by a transversal. One interior angle is 38°. What is its other interior angle on the same side of the transversal (in degrees)?
4. 4.What is the supplement of 29° (in degrees)?
5. 5.What is the supplement of 148° (in degrees)?
6. 6.Two angles are complementary. One is 40° more than the other. What is the bigger angle (in degrees)?
7. 7.What is the complement of 67° (in degrees)?
8. 8.What is the supplement of 143° (in degrees)?
9. 9.What is the complement of 36° (in degrees)?
10. 10.What is the supplement of 168° (in degrees)?
11. 11.What is the complement of 22° (in degrees)?
12. 12.Two angles are supplementary. One is 78° more than the other. What is the bigger angle (in degrees)?
13. 13.Two angles are supplementary. One is 100° more than the other. What is the bigger angle (in degrees)?
14. 14.What is the complement of 74° (in degrees)?
15. 15.What is the complement of 75° (in degrees)?
16. 16.What is the supplement of 43° (in degrees)?
17. 17.Two angles are complementary. One is 34° more than the other. What is the bigger angle (in degrees)?
18. 18.What is the supplement of 22° (in degrees)?
19. 19.What is the supplement of 30° (in degrees)?
20. 20.What is the supplement of 171° (in degrees)?
21. 21.What is the supplement of 103° (in degrees)?
22. 22.Two straight lines cross each other. One of the angles formed is 64°. What is the angle next to it on the same line (in degrees)?
23. 23.What is the supplement of 132° (in degrees)?
24. 24.Are 50° and 40° complementary, supplementary or neither? (a) Neither (b) Supplementary (c) Complementary
25. 25.What is the complement of 35° (in degrees)?
26. 26.What is the complement of 59° (in degrees)?
27. 27.What is the supplement of 23° (in degrees)?
28. 28.What is the complement of 13° (in degrees)?
29. 29.Are 69° and 72° complementary, supplementary or neither? (a) Complementary (b) Neither (c) Supplementary
30. 30.Are 63° and 104° complementary, supplementary or neither? (a) Complementary (b) Supplementary (c) Neither
31. 31.Two parallel lines are cut by a transversal. One angle is 83°. What is its corresponding angle (in degrees)?
32. 32.What is the supplement of 35° (in degrees)?
33. 33.What is the complement of 46° (in degrees)?
34. 34.What is the complement of 17° (in degrees)?
35. 35.Are 11° and 34° complementary, supplementary or neither? (a) Supplementary (b) Complementary (c) Neither
36. 36.What is the supplement of 146° (in degrees)?
37. 37.Two parallel lines are cut by a transversal. One interior angle is 64°. What is its alternate interior angle (in degrees)?
38. 38.Two angles are complementary. One is 70° more than the other. What is the bigger angle (in degrees)?
39. 39.What is the complement of 21° (in degrees)?
40. 40.Are 51° and 39° complementary, supplementary or neither? (a) Supplementary (b) Neither (c) Complementary

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