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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 879 · 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 115°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  2. 2.An angle measures 85°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  3. 3.The minute hand of a clock turns clockwise from 2 to 9. How many degrees does it turn?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  5. 5.Three angles together make a straight line. Two of them are 20° and 85°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 70°, 50° and 190°. What is the fourth angle (in degrees)?
  7. 7.An angle measures 125°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  8. 8.Three angles together make a straight line. Two of them are 85° and 85°. What is the third angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 60° and 10°. What is the third angle (in degrees)?
  10. 10.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  11. 11.An angle measures 55°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  12. 12.Three angles together make a straight line. Two of them are 40° and 20°. What is the third angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
  14. 14.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  15. 15.The minute hand of a clock turns clockwise from 5 to 2. How many degrees does it turn?
  16. 16.Four angles meet at a point. Three of them are 100°, 40° and 100°. What is the fourth angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 25° and 100°. What is the third angle (in degrees)?
  18. 18.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  19. 19.The minute hand of a clock turns clockwise from 3 to 7. How many degrees does it turn?
  20. 20.The minute hand of a clock turns clockwise from 9 to 12. How many degrees does it turn?
  21. 21.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 40°, 100° and 160°. What is the fourth angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 9 to 7. How many degrees does it turn?
  24. 24.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) South (d) East
  25. 25.You face West and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  26. 26.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 30°, 30° and 130°. What is the fourth angle (in degrees)?
  28. 28.An angle measures 25°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  29. 29.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  31. 31.An angle measures 105°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  32. 32.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  33. 33.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  34. 34.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 20° and 125°. What is the third angle (in degrees)?
  36. 36.The minute hand of a clock turns clockwise from 8 to 10. How many degrees does it turn?
  37. 37.The minute hand of a clock turns clockwise from 10 to 8. How many degrees does it turn?
  38. 38.The minute hand of a clock turns clockwise from 12 to 8. How many degrees does it turn?
  39. 39.The minute hand of a clock turns clockwise from 4 to 1. How many degrees does it turn?
  40. 40.The minute hand of a clock turns clockwise from 4 to 9. How many degrees does it turn?

Answer key

  1. Obtuse
  2. Acute
  3. 210
  4. Straight
  5. 75
  6. 50
  7. Obtuse
  8. 10
  9. 110
  10. 40
  11. Acute
  12. 120
  13. 180
  14. 72
  15. 270
  16. 120
  17. 55
  18. North
  19. 120
  20. 90
  21. 20
  22. 60
  23. 300
  24. South
  25. South
  26. 90
  27. 170
  28. Acute
  29. 45
  30. 180
  31. Obtuse
  32. 210
  33. 30
  34. 30
  35. 35
  36. 60
  37. 300
  38. 240
  39. 270
  40. 150

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