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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 813 · 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.The minute hand of a clock turns clockwise from 9 to 12. How many degrees does it turn?
  2. 2.Three angles together make a straight line. Two of them are 80° and 60°. What is the third angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 50°, 70° and 90°. What is the fourth angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 30° and 35°. What is the third angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 50°, 90° and 120°. What is the fourth angle (in degrees)?
  6. 6.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  7. 7.You face West and turn clockwise through 90°. Which direction do you face now? (a) East (b) North (c) South (d) West
  8. 8.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  9. 9.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) North (c) East (d) South
  10. 10.An angle measures 195°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  11. 11.An angle measures 275°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
  12. 12.Four angles meet at a point. Three of them are 80°, 90° and 40°. What is the fourth angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 11 to 1. How many degrees does it turn?
  14. 14.Four angles meet at a point. Three of them are 30°, 50° and 180°. What is the fourth angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 70°, 70° and 90°. What is the fourth angle (in degrees)?
  16. 16.An angle measures 5°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  17. 17.Four angles meet at a point. Three of them are 40°, 30° and 250°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 20° and 135°. What is the third angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 85° and 65°. What is the third angle (in degrees)?
  20. 20.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  21. 21.An angle measures 115°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  22. 22.The minute hand of a clock turns clockwise from 5 to 8. How many degrees does it turn?
  23. 23.Four angles meet at a point. Three of them are 40°, 60° and 70°. What is the fourth angle (in degrees)?
  24. 24.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  25. 25.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
  26. 26.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  27. 27.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) West (d) North
  28. 28.You face North and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  29. 29.An angle measures 10°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  30. 30.Three angles together make a straight line. Two of them are 55° and 75°. What is the third angle (in degrees)?
  31. 31.The minute hand of a clock turns clockwise from 1 to 2. How many degrees does it turn?
  32. 32.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  33. 33.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  34. 34.Three angles together make a straight line. Two of them are 55° and 80°. What is the third angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 40°, 50° and 30°. What is the fourth angle (in degrees)?
  36. 36.Four angles meet at a point. Three of them are 70°, 80° and 130°. What is the fourth angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 95° and 55°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 75° and 50°. What is the third angle (in degrees)?
  39. 39.You face South and turn clockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  40. 40.Three angles together make a straight line. Two of them are 90° and 65°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 40
  3. 150
  4. 115
  5. 100
  6. 120
  7. North
  8. Right
  9. South
  10. Reflex
  11. Reflex
  12. 150
  13. 60
  14. 100
  15. 130
  16. Acute
  17. 40
  18. 25
  19. 30
  20. 36
  21. Obtuse
  22. 90
  23. 190
  24. Straight
  25. 90
  26. 90
  27. East
  28. West
  29. Acute
  30. 50
  31. 30
  32. 30
  33. West
  34. 45
  35. 240
  36. 80
  37. 30
  38. 55
  39. East
  40. 25

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