Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 374 · 40 sums

The method (Know the totals): Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°. On a straight line: the two angles add up to 180°. In a triangle: the three angles add up to 180°. Around a point: 360°. Clock: each hour mark is 30° apart (360° ÷ 12).

1. 1.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Straight
2. 2.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
3. 3.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
4. 4.Three angles meet at a point. Two of them are 100° and 150°. What is the third angle (in degrees)?
5. 5.An angle measures 75°. What kind of angle is it? (a) Straight (b) Acute (c) Right
6. 6.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
7. 7.Two angles of a triangle are 30° and 85°. What is the third angle (in degrees)?
8. 8.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
9. 9.An angle measures 50°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
10. 10.An angle measures 15°. What kind of angle is it? (a) Straight (b) Right (c) Acute
11. 11.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
12. 12.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
13. 13.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
14. 14.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
15. 15.An angle measures 165°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
16. 16.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
17. 17.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
18. 18.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
19. 19.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
20. 20.Two angles of a triangle are 25° and 70°. What is the third angle (in degrees)?
21. 21.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
22. 22.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
23. 23.Three angles meet at a point. Two of them are 70° and 220°. What is the third angle (in degrees)?
24. 24.Two angles of a triangle are 80° and 85°. What is the third angle (in degrees)?
25. 25.An angle measures 25°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
26. 26.Two angles of a triangle are 75° and 100°. What is the third angle (in degrees)?
27. 27.Three angles meet at a point. Two of them are 80° and 110°. What is the third angle (in degrees)?
28. 28.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
29. 29.Two angles of a triangle are 100° and 65°. What is the third angle (in degrees)?
30. 30.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
31. 31.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
32. 32.An angle measures 120°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
33. 33.Three angles meet at a point. Two of them are 80° and 180°. What is the third angle (in degrees)?
34. 34.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
35. 35.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
36. 36.An angle measures 30°. What kind of angle is it? (a) Acute (b) Right (c) Straight
37. 37.Two angles of a triangle are 85° and 40°. What is the third angle (in degrees)?
38. 38.Three angles meet at a point. Two of them are 110° and 80°. What is the third angle (in degrees)?
39. 39.An angle measures 135°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
40. 40.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?

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