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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 849 · 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.An angle measures 230°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
  2. 2.Four angles meet at a point. Three of them are 40°, 50° and 150°. What is the fourth angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 90°, 100° and 130°. What is the fourth angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 40°, 30° and 250°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 20° and 65°. What is the third angle (in degrees)?
  6. 6.The minute hand of a clock turns clockwise from 1 to 8. How many degrees does it turn?
  7. 7.The minute hand of a clock turns clockwise from 11 to 6. How many degrees does it turn?
  8. 8.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  9. 9.An angle measures 5°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  10. 10.Three angles together make a straight line. Two of them are 35° and 135°. What is the third angle (in degrees)?
  11. 11.An angle measures 350°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  12. 12.Three angles together make a straight line. Two of them are 65° and 75°. What is the third angle (in degrees)?
  13. 13.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) South (c) West (d) East
  14. 14.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  15. 15.The minute hand of a clock turns clockwise from 7 to 10. How many degrees does it turn?
  16. 16.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  17. 17.Four angles meet at a point. Three of them are 30°, 40° and 280°. What is the fourth angle (in degrees)?
  18. 18.Four angles meet at a point. Three of them are 80°, 60° and 130°. What is the fourth angle (in degrees)?
  19. 19.An angle measures 145°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  20. 20.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 65° and 20°. What is the third angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
  23. 23.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 40°, 90° and 150°. What is the fourth angle (in degrees)?
  25. 25.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 50° and 10°. What is the third angle (in degrees)?
  27. 27.An angle measures 355°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  28. 28.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) South (d) East
  29. 29.Four angles meet at a point. Three of them are 100°, 100° and 150°. What is the fourth angle (in degrees)?
  30. 30.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  31. 31.Four angles meet at a point. Three of them are 30°, 40° and 180°. What is the fourth angle (in degrees)?
  32. 32.The minute hand of a clock turns clockwise from 1 to 10. How many degrees does it turn?
  33. 33.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 40°, 100° and 200°. What is the fourth angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
  36. 36.The minute hand of a clock turns clockwise from 3 to 12. How many degrees does it turn?
  37. 37.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  38. 38.Four angles meet at a point. Three of them are 40°, 40° and 30°. What is the fourth angle (in degrees)?
  39. 39.An angle measures 65°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  40. 40.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?

Answer key

  1. Reflex
  2. 120
  3. 40
  4. 40
  5. 95
  6. 210
  7. 210
  8. 90
  9. Acute
  10. 10
  11. Reflex
  12. 40
  13. North
  14. South
  15. 90
  16. 60
  17. 10
  18. 90
  19. Obtuse
  20. 60
  21. 95
  22. 180
  23. 15
  24. 80
  25. 45
  26. 120
  27. Reflex
  28. North
  29. 10
  30. South
  31. 110
  32. 270
  33. 30
  34. 20
  35. 210
  36. 270
  37. Straight
  38. 250
  39. Acute
  40. 80

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