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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 680 · 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 345°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  2. 2.Three angles together make a straight line. Two of them are 50° and 75°. What is the third angle (in degrees)?
  3. 3.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 30°, 30° and 150°. What is the fourth angle (in degrees)?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  6. 6.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  7. 7.An angle measures 10°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  8. 8.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  9. 9.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) South (d) West
  10. 10.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  11. 11.Three angles together make a straight line. Two of them are 75° and 75°. What is the third angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 55° and 70°. What is the third angle (in degrees)?
  15. 15.An angle measures 210°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  16. 16.An angle measures 80°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  17. 17.Three angles together make a straight line. Two of them are 20° and 60°. What is the third angle (in degrees)?
  18. 18.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.Four angles meet at a point. Three of them are 50°, 30° and 60°. What is the fourth angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 55° and 100°. What is the third angle (in degrees)?
  21. 21.The minute hand of a clock turns clockwise from 9 to 6. How many degrees does it turn?
  22. 22.The minute hand of a clock turns clockwise from 9 to 7. How many degrees does it turn?
  23. 23.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 45° and 85°. What is the third angle (in degrees)?
  25. 25.The minute hand of a clock turns clockwise from 2 to 5. How many degrees does it turn?
  26. 26.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
  27. 27.An angle measures 320°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  28. 28.Four angles meet at a point. Three of them are 90°, 60° and 50°. What is the fourth angle (in degrees)?
  29. 29.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  30. 30.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  31. 31.An angle measures 5°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  32. 32.You face South and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) South (d) East
  33. 33.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 1 to 9. How many degrees does it turn?
  35. 35.An angle measures 295°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  36. 36.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  37. 37.Three angles together make a straight line. Two of them are 55° and 105°. What is the third angle (in degrees)?
  38. 38.Four angles meet at a point. Three of them are 100°, 60° and 130°. What is the fourth angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 40°, 70° and 50°. What is the fourth angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?

Answer key

  1. Reflex
  2. 55
  3. 40
  4. 150
  5. Right
  6. Straight
  7. Acute
  8. South
  9. East
  10. 90
  11. 30
  12. 85
  13. 120
  14. 55
  15. Reflex
  16. Acute
  17. 100
  18. 60
  19. 220
  20. 25
  21. 270
  22. 300
  23. 120
  24. 50
  25. 90
  26. 180
  27. Reflex
  28. 160
  29. 60
  30. Obtuse
  31. Acute
  32. East
  33. 10
  34. 240
  35. Reflex
  36. South
  37. 20
  38. 70
  39. 200
  40. 270

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