Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 819 · 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.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
2. 2.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
3. 3.Three angles together make a straight line. Two of them are 20° and 30°. What is the third angle (in degrees)?
4. 4.The minute hand of a clock turns clockwise from 8 to 10. How many degrees does it turn?
5. 5.An angle measures 150°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
6. 6.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
7. 7.Four angles meet at a point. Three of them are 40°, 100° and 160°. What is the fourth angle (in degrees)?
8. 8.The minute hand of a clock turns clockwise from 1 to 5. How many degrees does it turn?
9. 9.You face East and turn clockwise through 180°. Which direction do you face now? (a) East (b) West (c) North (d) South
10. 10.An angle measures 180°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
11. 11.The minute hand of a clock turns clockwise from 7 to 8. How many degrees does it turn?
12. 12.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
13. 13.You face West and turn clockwise through 90°. Which direction do you face now? (a) East (b) South (c) West (d) North
14. 14.Three angles together make a straight line. Two of them are 10° and 55°. What is the third angle (in degrees)?
15. 15.Three angles together make a straight line. Two of them are 40° and 45°. What is the third angle (in degrees)?
16. 16.Four angles meet at a point. Three of them are 90°, 80° and 30°. What is the fourth angle (in degrees)?
17. 17.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East
18. 18.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
19. 19.Three angles together make a straight line. Two of them are 60° and 50°. What is the third angle (in degrees)?
20. 20.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
21. 21.An angle measures 90°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
22. 22.An angle measures 100°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
23. 23.The minute hand of a clock turns clockwise from 3 to 2. How many degrees does it turn?
24. 24.The minute hand of a clock turns clockwise from 12 to 11. How many degrees does it turn?
25. 25.The minute hand of a clock turns clockwise from 10 to 11. How many degrees does it turn?
26. 26.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
27. 27.An angle measures 130°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
28. 28.An angle measures 300°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
29. 29.An angle measures 80°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
30. 30.Four angles meet at a point. Three of them are 30°, 90° and 140°. What is the fourth angle (in degrees)?
31. 31.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
32. 32.Three angles together make a straight line. Two of them are 45° and 70°. What is the third angle (in degrees)?
33. 33.Four angles meet at a point. Three of them are 90°, 50° and 190°. What is the fourth angle (in degrees)?
34. 34.Four angles meet at a point. Three of them are 90°, 50° and 90°. What is the fourth angle (in degrees)?
35. 35.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
36. 36.Three angles together make a straight line. Two of them are 20° and 35°. What is the third angle (in degrees)?
37. 37.Three angles together make a straight line. Two of them are 35° and 85°. What is the third angle (in degrees)?
38. 38.The minute hand of a clock turns clockwise from 4 to 12. How many degrees does it turn?
39. 39.Three angles together make a straight line. Two of them are 95° and 10°. What is the third angle (in degrees)?
40. 40.Three angles together make a straight line. Two of them are 95° and 70°. What is the third angle (in degrees)?

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