Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 840 · 40 sums

The method (Know the totals): Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex between 180° and 360°. Angles on a straight line add up to 180°; angles around a point add up to 360°. Each hour mark on a clock is 30° apart (360° ÷ 12). Turning clockwise from North: 90° → East, 180° → South, 270° → West.

1. 1.Three angles together make a straight line. Two of them are 50° and 55°. What is the third angle (in degrees)?
2. 2.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
3. 3.An angle measures 310°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
4. 4.An angle measures 85°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
5. 5.Three angles together make a straight line. Two of them are 60° and 105°. What is the third angle (in degrees)?
6. 6.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
7. 7.Three angles together make a straight line. Two of them are 90° and 60°. What is the third angle (in degrees)?
8. 8.You face South and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) South (d) North
9. 9.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
10. 10.Four angles meet at a point. Three of them are 30°, 70° and 200°. What is the fourth angle (in degrees)?
11. 11.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
12. 12.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
13. 13.Four angles meet at a point. Three of them are 40°, 50° and 120°. What is the fourth angle (in degrees)?
14. 14.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
15. 15.Four angles meet at a point. Three of them are 70°, 90° and 40°. What is the fourth angle (in degrees)?
16. 16.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
17. 17.Three angles together make a straight line. Two of them are 20° and 85°. What is the third angle (in degrees)?
18. 18.Three angles together make a straight line. Two of them are 50° and 60°. What is the third angle (in degrees)?
19. 19.Four angles meet at a point. Three of them are 100°, 60° and 60°. What is the fourth angle (in degrees)?
20. 20.Three angles together make a straight line. Two of them are 75° and 65°. What is the third angle (in degrees)?
21. 21.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
22. 22.An angle measures 100°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
23. 23.An angle measures 160°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
24. 24.You face North and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
25. 25.The minute hand of a clock turns clockwise from 11 to 8. How many degrees does it turn?
26. 26.Three angles together make a straight line. Two of them are 45° and 40°. What is the third angle (in degrees)?
27. 27.Four angles meet at a point. Three of them are 60°, 60° and 70°. What is the fourth angle (in degrees)?
28. 28.Four angles meet at a point. Three of them are 90°, 40° and 120°. What is the fourth angle (in degrees)?
29. 29.Four angles meet at a point. Three of them are 100°, 100° and 30°. What is the fourth angle (in degrees)?
30. 30.The minute hand of a clock turns clockwise from 10 to 5. How many degrees does it turn?
31. 31.Four angles meet at a point. Three of them are 50°, 70° and 70°. What is the fourth angle (in degrees)?
32. 32.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
33. 33.An angle measures 25°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
34. 34.You face South and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
35. 35.Four angles meet at a point. Three of them are 30°, 70° and 130°. What is the fourth angle (in degrees)?
36. 36.The minute hand of a clock turns clockwise from 10 to 8. How many degrees does it turn?
37. 37.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
38. 38.An angle measures 140°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
39. 39.An angle measures 80°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
40. 40.The minute hand of a clock turns clockwise from 5 to 4. How many degrees does it turn?

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