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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 573 · 40 sums
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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.

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  1. 1.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  2. 2.An angle measures 10°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  3. 3.The minute hand of a clock turns clockwise from 9 to 10. How many degrees does it turn?
  4. 4.The minute hand of a clock turns clockwise from 12 to 5. How many degrees does it turn?
  5. 5.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  6. 6.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  7. 7.Four angles meet at a point. Three of them are 30°, 50° and 270°. What is the fourth angle (in degrees)?
  8. 8.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  9. 9.The minute hand of a clock turns clockwise from 3 to 9. How many degrees does it turn?
  10. 10.You face East and turn clockwise through 180°. Which direction do you face now? (a) East (b) North (c) West (d) South
  11. 11.An angle measures 40°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  12. 12.The minute hand of a clock turns clockwise from 11 to 9. How many degrees does it turn?
  13. 13.Four angles meet at a point. Three of them are 30°, 40° and 80°. What is the fourth angle (in degrees)?
  14. 14.An angle measures 20°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  15. 15.Four angles meet at a point. Three of them are 60°, 90° and 60°. What is the fourth angle (in degrees)?
  16. 16.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  17. 17.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) West (d) North
  18. 18.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 85° and 25°. What is the third angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 30° and 110°. What is the third angle (in degrees)?
  21. 21.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  22. 22.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) East (c) North (d) West
  23. 23.Four angles meet at a point. Three of them are 50°, 100° and 130°. What is the fourth angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 45° and 55°. What is the third angle (in degrees)?
  25. 25.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  26. 26.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) South (c) East (d) North
  27. 27.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) South (d) East
  28. 28.The minute hand of a clock turns clockwise from 9 to 5. How many degrees does it turn?
  29. 29.An angle measures 355°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  30. 30.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 90° and 40°. What is the third angle (in degrees)?
  32. 32.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?
  33. 33.Three angles together make a straight line. Two of them are 80° and 15°. What is the third angle (in degrees)?
  34. 34.An angle measures 265°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  35. 35.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  36. 36.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
  37. 37.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 8 to 6. How many degrees does it turn?
  39. 39.Three angles together make a straight line. Two of them are 75° and 20°. What is the third angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 40°, 30° and 250°. What is the fourth angle (in degrees)?

Answer key

  1. Obtuse
  2. Acute
  3. 30
  4. 150
  5. Straight
  6. East
  7. 10
  8. 90
  9. 180
  10. West
  11. Acute
  12. 300
  13. 210
  14. Acute
  15. 150
  16. 40
  17. South
  18. 30
  19. 70
  20. 40
  21. 90
  22. East
  23. 80
  24. 80
  25. 30
  26. East
  27. South
  28. 240
  29. Reflex
  30. 30
  31. 50
  32. 330
  33. 85
  34. Reflex
  35. 90
  36. 240
  37. 18
  38. 300
  39. 85
  40. 40

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