Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 634 · 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 85° and 60°. What is the third angle (in degrees)?
2. 2.An angle measures 200°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
3. 3.An angle measures 90°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
4. 4.An angle measures 320°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
5. 5.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
6. 6.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
7. 7.Four angles meet at a point. Three of them are 90°, 90° and 50°. What is the fourth angle (in degrees)?
8. 8.An angle measures 150°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
9. 9.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) South (d) East
10. 10.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) North (d) West
11. 11.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
12. 12.An angle measures 180°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
13. 13.Four angles meet at a point. Three of them are 80°, 40° and 30°. What is the fourth angle (in degrees)?
14. 14.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
15. 15.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
16. 16.An angle measures 45°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
17. 17.The minute hand of a clock turns clockwise from 6 to 8. How many degrees does it turn?
18. 18.An angle measures 20°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
19. 19.An angle measures 70°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
20. 20.Four angles meet at a point. Three of them are 60°, 90° and 50°. What is the fourth angle (in degrees)?
21. 21.An angle measures 80°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
22. 22.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
23. 23.Three angles together make a straight line. Two of them are 15° and 70°. What is the third angle (in degrees)?
24. 24.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) West (c) East (d) North
25. 25.The minute hand of a clock turns clockwise from 3 to 11. How many degrees does it turn?
26. 26.An angle measures 185°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
27. 27.The minute hand of a clock turns clockwise from 12 to 5. How many degrees does it turn?
28. 28.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
29. 29.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
30. 30.An angle measures 290°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
31. 31.Three angles together make a straight line. Two of them are 30° and 45°. What is the third angle (in degrees)?
32. 32.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
33. 33.The minute hand of a clock turns clockwise from 2 to 1. How many degrees does it turn?
34. 34.Three angles together make a straight line. Two of them are 25° and 60°. What is the third angle (in degrees)?
35. 35.Three angles together make a straight line. Two of them are 45° and 30°. What is the third angle (in degrees)?
36. 36.An angle measures 350°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
37. 37.An angle measures 25°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
38. 38.An angle measures 345°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
39. 39.Four angles meet at a point. Three of them are 100°, 50° and 60°. What is the fourth angle (in degrees)?
40. 40.Four angles meet at a point. Three of them are 80°, 40° and 220°. What is the fourth angle (in degrees)?

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