Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 121 · 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.Four angles meet at a point. Three of them are 80°, 80° and 40°. What is the fourth angle (in degrees)?
2. 2.Three angles together make a straight line. Two of them are 30° and 120°. What is the third angle (in degrees)?
3. 3.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
4. 4.Three angles together make a straight line. Two of them are 65° and 20°. What is the third angle (in degrees)?
5. 5.An angle measures 165°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
6. 6.An angle measures 175°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
7. 7.The minute hand of a clock turns clockwise from 4 to 1. How many degrees does it turn?
8. 8.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
9. 9.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) North (c) East (d) West
10. 10.The minute hand of a clock turns clockwise from 3 to 11. How many degrees does it turn?
11. 11.An angle measures 110°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
12. 12.The minute hand of a clock turns clockwise from 1 to 2. How many degrees does it turn?
13. 13.You face North and turn clockwise through 180°. Which direction do you face now? (a) South (b) West (c) North (d) East
14. 14.Four angles meet at a point. Three of them are 70°, 90° and 180°. What is the fourth angle (in degrees)?
15. 15.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
16. 16.Three angles together make a straight line. Two of them are 15° and 20°. What is the third angle (in degrees)?
17. 17.Three angles together make a straight line. Two of them are 75° and 15°. What is the third angle (in degrees)?
18. 18.The minute hand of a clock turns clockwise from 7 to 8. How many degrees does it turn?
19. 19.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
20. 20.The minute hand of a clock turns clockwise from 8 to 10. How many degrees does it turn?
21. 21.You face North and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
22. 22.Three angles together make a straight line. Two of them are 55° and 50°. What is the third angle (in degrees)?
23. 23.You face West and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) South (d) North
24. 24.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
25. 25.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
26. 26.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
27. 27.The minute hand of a clock turns clockwise from 2 to 9. How many degrees does it turn?
28. 28.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
29. 29.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
30. 30.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
31. 31.An angle measures 90°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
32. 32.Three angles together make a straight line. Two of them are 55° and 15°. What is the third angle (in degrees)?
33. 33.Three angles together make a straight line. Two of them are 40° and 80°. What is the third angle (in degrees)?
34. 34.Three angles together make a straight line. Two of them are 70° and 20°. What is the third angle (in degrees)?
35. 35.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
36. 36.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) West (c) North (d) East
37. 37.An angle measures 330°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
38. 38.An angle measures 285°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
39. 39.Three angles together make a straight line. Two of them are 10° and 35°. What is the third angle (in degrees)?
40. 40.An angle measures 270°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex

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