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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 426 · 40 sums
TalentJR

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 straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  3. 3.An angle measures 50°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  4. 4.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) West (d) North
  5. 5.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  6. 6.Four angles meet at a point. Three of them are 40°, 50° and 160°. What is the fourth angle (in degrees)?
  7. 7.The minute hand of a clock turns clockwise from 5 to 3. How many degrees does it turn?
  8. 8.An angle measures 55°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  9. 9.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  10. 10.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  11. 11.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  12. 12.The minute hand of a clock turns clockwise from 1 to 11. How many degrees does it turn?
  13. 13.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) North (d) East
  14. 14.An angle measures 115°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  15. 15.Three angles together make a straight line. Two of them are 100° and 20°. What is the third angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  17. 17.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  18. 18.An angle measures 75°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  19. 19.Three angles together make a straight line. Two of them are 70° and 30°. What is the third angle (in degrees)?
  20. 20.An angle measures 45°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  21. 21.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  22. 22.Four angles meet at a point. Three of them are 40°, 60° and 220°. What is the fourth angle (in degrees)?
  23. 23.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  24. 24.An angle measures 145°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  25. 25.Four angles meet at a point. Three of them are 70°, 70° and 60°. What is the fourth angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 11 to 9. How many degrees does it turn?
  27. 27.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 60°, 50° and 240°. What is the fourth angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 90°, 100° and 70°. What is the fourth angle (in degrees)?
  30. 30.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  31. 31.Four angles meet at a point. Three of them are 80°, 60° and 150°. What is the fourth angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 40°, 90° and 150°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 9 to 6. How many degrees does it turn?
  34. 34.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 20° and 95°. What is the third angle (in degrees)?
  36. 36.An angle measures 285°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
  37. 37.Three angles together make a straight line. Two of them are 85° and 45°. What is the third angle (in degrees)?
  38. 38.An angle measures 210°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  39. 39.Four angles meet at a point. Three of them are 40°, 90° and 70°. What is the fourth angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 60° and 110°. What is the third angle (in degrees)?

Answer key

  1. 15
  2. Right
  3. Acute
  4. South
  5. Straight
  6. 110
  7. 300
  8. Acute
  9. 40
  10. 45
  11. 90
  12. 300
  13. West
  14. Obtuse
  15. 60
  16. 60
  17. 20
  18. Acute
  19. 80
  20. Acute
  21. North
  22. 40
  23. 120
  24. Obtuse
  25. 160
  26. 300
  27. 60
  28. 10
  29. 100
  30. South
  31. 70
  32. 80
  33. 270
  34. 30
  35. 65
  36. Reflex
  37. 50
  38. Reflex
  39. 160
  40. 10

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