Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 651 · 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 45° and 65°. What is the third angle (in degrees)?
2. 2.Four angles meet at a point. Three of them are 60°, 40° and 240°. What is the fourth angle (in degrees)?
3. 3.The minute hand of a clock turns clockwise from 3 to 12. How many degrees does it turn?
4. 4.Three angles together make a straight line. Two of them are 20° and 30°. What is the third angle (in degrees)?
5. 5.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
6. 6.Three angles together make a straight line. Two of them are 25° and 20°. What is the third angle (in degrees)?
7. 7.Four angles meet at a point. Three of them are 90°, 30° and 90°. What is the fourth angle (in degrees)?
8. 8.Three angles together make a straight line. Two of them are 35° and 35°. What is the third angle (in degrees)?
9. 9.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
10. 10.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
11. 11.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
12. 12.An angle measures 135°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
13. 13.You face South and turn clockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
14. 14.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
15. 15.Four angles meet at a point. Three of them are 40°, 80° and 60°. What is the fourth angle (in degrees)?
16. 16.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
17. 17.Four angles meet at a point. Three of them are 80°, 100° and 70°. What is the fourth angle (in degrees)?
18. 18.Three angles together make a straight line. Two of them are 15° and 30°. What is the third angle (in degrees)?
19. 19.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
20. 20.The minute hand of a clock turns clockwise from 7 to 3. How many degrees does it turn?
21. 21.You face West and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East
22. 22.Four angles meet at a point. Three of them are 30°, 90° and 210°. What is the fourth angle (in degrees)?
23. 23.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
24. 24.Four angles meet at a point. Three of them are 70°, 40° and 240°. What is the fourth angle (in degrees)?
25. 25.Four angles meet at a point. Three of them are 40°, 30° and 200°. What is the fourth angle (in degrees)?
26. 26.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) West (c) East (d) South
27. 27.Four angles meet at a point. Three of them are 90°, 30° and 120°. What is the fourth 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.An angle measures 95°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
30. 30.Four angles meet at a point. Three of them are 80°, 80° and 90°. What is the fourth angle (in degrees)?
31. 31.Four angles meet at a point. Three of them are 40°, 30° and 80°. What is the fourth angle (in degrees)?
32. 32.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
33. 33.Four angles meet at a point. Three of them are 90°, 40° and 70°. What is the fourth angle (in degrees)?
34. 34.Four angles meet at a point. Three of them are 40°, 50° and 50°. What is the fourth angle (in degrees)?
35. 35.Four angles meet at a point. Three of them are 70°, 50° and 220°. What is the fourth angle (in degrees)?
36. 36.An angle measures 50°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
37. 37.Four angles meet at a point. Three of them are 40°, 90° and 120°. What is the fourth angle (in degrees)?
38. 38.An angle measures 200°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
39. 39.An angle measures 70°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
40. 40.An angle measures 190°. What kind of angle is it? (a) Obtuse (b) Right (c) Reflex

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