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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 31 · 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.

NameDateTime takenScore ___ / 40
  1. 1.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  3. 3.The minute hand of a clock turns clockwise from 5 to 6. How many degrees does it turn?
  4. 4.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  5. 5.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  6. 6.Three angles together make a straight line. Two of them are 85° and 70°. What is the third angle (in degrees)?
  7. 7.An angle measures 320°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  8. 8.Four angles meet at a point. Three of them are 80°, 80° and 60°. What is the fourth angle (in degrees)?
  9. 9.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  10. 10.An angle measures 20°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  11. 11.Three angles together make a straight line. Two of them are 45° and 20°. What is the third angle (in degrees)?
  12. 12.The minute hand of a clock turns clockwise from 9 to 7. How many degrees does it turn?
  13. 13.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  14. 14.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 10° and 110°. What is the third angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 35° and 15°. What is the third angle (in degrees)?
  17. 17.An angle measures 300°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  18. 18.Four angles meet at a point. Three of them are 80°, 70° and 200°. What is the fourth angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 2 to 4. How many degrees does it turn?
  20. 20.An angle measures 180°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  21. 21.An angle measures 60°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  22. 22.Three angles together make a straight line. Two of them are 95° and 60°. What is the third angle (in degrees)?
  23. 23.You face South and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  24. 24.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  25. 25.An angle measures 140°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  26. 26.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  27. 27.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
  28. 28.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 30°, 40° and 40°. What is the fourth angle (in degrees)?
  30. 30.You face South and turn clockwise through 180°. Which direction do you face now? (a) South (b) North (c) West (d) East
  31. 31.An angle measures 265°. What kind of angle is it? (a) Straight (b) Right (c) Reflex
  32. 32.Three angles together make a straight line. Two of them are 10° and 100°. What is the third angle (in degrees)?
  33. 33.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) East (c) South (d) North
  34. 34.Four angles meet at a point. Three of them are 30°, 40° and 150°. What is the fourth angle (in degrees)?
  35. 35.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) West (d) South
  36. 36.Three angles together make a straight line. Two of them are 75° and 85°. What is the third angle (in degrees)?
  37. 37.An angle measures 25°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  38. 38.Four angles meet at a point. Three of them are 100°, 50° and 190°. What is the fourth angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 80°, 40° and 150°. What is the fourth angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 60° and 45°. What is the third angle (in degrees)?

Answer key

  1. 45
  2. Right
  3. 30
  4. 30
  5. South
  6. 25
  7. Reflex
  8. 140
  9. 15
  10. Acute
  11. 115
  12. 300
  13. 36
  14. 120
  15. 60
  16. 130
  17. Reflex
  18. 10
  19. 60
  20. Straight
  21. Acute
  22. 25
  23. West
  24. 60
  25. Obtuse
  26. 30
  27. East
  28. 60
  29. 250
  30. North
  31. Reflex
  32. 70
  33. South
  34. 140
  35. South
  36. 20
  37. Acute
  38. 20
  39. 90
  40. 75

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