Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 21 · 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 30°, 90° and 80°. What is the fourth angle (in degrees)?
2. 2.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) East (c) West (d) North
3. 3.Four angles meet at a point. Three of them are 30°, 30° and 270°. What is the fourth angle (in degrees)?
4. 4.Four angles meet at a point. Three of them are 30°, 100° and 40°. What is the fourth angle (in degrees)?
5. 5.Three angles together make a straight line. Two of them are 40° and 125°. What is the third angle (in degrees)?
6. 6.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
7. 7.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
8. 8.An angle measures 100°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
9. 9.An angle measures 20°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
10. 10.Four angles meet at a point. Three of them are 80°, 50° and 120°. What is the fourth angle (in degrees)?
11. 11.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
12. 12.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) North (c) West (d) East
13. 13.You face East and turn clockwise through 180°. Which direction do you face now? (a) South (b) North (c) East (d) West
14. 14.Four angles meet at a point. Three of them are 100°, 80° and 110°. What is the fourth angle (in degrees)?
15. 15.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) South (d) West
16. 16.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
17. 17.You face South and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) South (d) East
18. 18.An angle measures 55°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
19. 19.An angle measures 145°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
20. 20.The minute hand of a clock turns clockwise from 4 to 3. How many degrees does it turn?
21. 21.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
22. 22.Three angles together make a straight line. Two of them are 60° and 60°. What is the third angle (in degrees)?
23. 23.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
24. 24.Four angles meet at a point. Three of them are 100°, 100° and 90°. What is the fourth angle (in degrees)?
25. 25.Three angles together make a straight line. Two of them are 60° and 15°. What is the third angle (in degrees)?
26. 26.The minute hand of a clock turns clockwise from 12 to 9. How many degrees does it turn?
27. 27.Three angles together make a straight line. Two of them are 30° and 85°. What is the third angle (in degrees)?
28. 28.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
29. 29.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
30. 30.The minute hand of a clock turns clockwise from 11 to 1. How many degrees does it turn?
31. 31.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
32. 32.Three angles together make a straight line. Two of them are 55° and 10°. What is the third angle (in degrees)?
33. 33.The minute hand of a clock turns clockwise from 1 to 8. How many degrees does it turn?
34. 34.Four angles meet at a point. Three of them are 90°, 40° and 90°. What is the fourth angle (in degrees)?
35. 35.An angle measures 125°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
36. 36.The minute hand of a clock turns clockwise from 11 to 2. How many degrees does it turn?
37. 37.An angle measures 190°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
38. 38.Three angles together make a straight line. Two of them are 100° and 60°. What is the third angle (in degrees)?
39. 39.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
40. 40.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) North (c) West (d) East

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