Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 90 · 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.An angle measures 335°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
2. 2.Four angles meet at a point. Three of them are 70°, 70° and 30°. What is the fourth angle (in degrees)?
3. 3.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
4. 4.Three angles together make a straight line. Two of them are 40° and 65°. What is the third angle (in degrees)?
5. 5.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
6. 6.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
7. 7.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
8. 8.An angle measures 310°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
9. 9.You face East and turn clockwise through 270°. Which direction do you face now? (a) East (b) North (c) West (d) South
10. 10.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
11. 11.Three angles together make a straight line. Two of them are 55° and 10°. What is the third angle (in degrees)?
12. 12.Three angles together make a straight line. Two of them are 30° and 135°. What is the third angle (in degrees)?
13. 13.The minute hand of a clock turns clockwise from 12 to 4. How many degrees does it turn?
14. 14.An angle measures 175°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
15. 15.Four angles meet at a point. Three of them are 100°, 40° and 60°. What is the fourth angle (in degrees)?
16. 16.An angle measures 195°. What kind of angle is it? (a) Obtuse (b) Right (c) Reflex
17. 17.Three angles together make a straight line. Two of them are 10° and 130°. What is the third angle (in degrees)?
18. 18.An angle measures 190°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
19. 19.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
20. 20.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
21. 21.The minute hand of a clock turns clockwise from 2 to 5. How many degrees does it turn?
22. 22.You face South and turn clockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
23. 23.Three angles together make a straight line. Two of them are 15° and 95°. What is the third angle (in degrees)?
24. 24.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
25. 25.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
26. 26.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?
27. 27.Three angles together make a straight line. Two of them are 85° and 85°. What is the third angle (in degrees)?
28. 28.Three angles together make a straight line. Two of them are 65° and 80°. What is the third angle (in degrees)?
29. 29.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
30. 30.Three angles together make a straight line. Two of them are 40° and 35°. What is the third angle (in degrees)?
31. 31.Four angles meet at a point. Three of them are 40°, 30° and 60°. What is the fourth angle (in degrees)?
32. 32.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
33. 33.Three angles together make a straight line. Two of them are 25° and 90°. What is the third angle (in degrees)?
34. 34.An angle measures 280°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
35. 35.Four angles meet at a point. Three of them are 50°, 50° and 150°. What is the fourth angle (in degrees)?
36. 36.An angle measures 325°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
37. 37.Four angles meet at a point. Three of them are 100°, 80° and 110°. What is the fourth angle (in degrees)?
38. 38.An angle measures 220°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
39. 39.Four angles meet at a point. Three of them are 70°, 50° and 110°. What is the fourth angle (in degrees)?
40. 40.Four angles meet at a point. Three of them are 80°, 60° and 110°. What is the fourth angle (in degrees)?

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