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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 271 · 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.Three angles together make a straight line. Two of them are 25° and 10°. What is the third angle (in degrees)?
  2. 2.An angle measures 320°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  3. 3.The minute hand of a clock turns clockwise from 1 to 6. How many degrees does it turn?
  4. 4.The minute hand of a clock turns clockwise from 12 to 5. How many degrees does it turn?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  6. 6.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  7. 7.You face North and turn clockwise through 270°. Which direction do you face now? (a) West (b) South (c) North (d) East
  8. 8.The minute hand of a clock turns clockwise from 10 to 11. How many degrees does it turn?
  9. 9.An angle measures 80°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  10. 10.An angle measures 165°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  11. 11.Four angles meet at a point. Three of them are 80°, 90° and 160°. What is the fourth angle (in degrees)?
  12. 12.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 1 to 10. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 65° and 60°. What is the third angle (in degrees)?
  15. 15.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  16. 16.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
  17. 17.The minute hand of a clock turns clockwise from 4 to 2. How many degrees does it turn?
  18. 18.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
  19. 19.Three angles together make a straight line. Two of them are 40° and 95°. What is the third angle (in degrees)?
  20. 20.An angle measures 65°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  21. 21.Three angles together make a straight line. Two of them are 75° and 20°. What is the third angle (in degrees)?
  22. 22.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  23. 23.Three angles together make a straight line. Two of them are 35° and 10°. What is the third angle (in degrees)?
  24. 24.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 75° and 95°. What is the third angle (in degrees)?
  26. 26.Four angles meet at a point. Three of them are 80°, 50° and 200°. What is the fourth angle (in degrees)?
  27. 27.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  28. 28.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  29. 29.An angle measures 255°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  30. 30.Three angles together make a straight line. Two of them are 70° and 100°. What is the third angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 40°, 80° and 220°. What is the fourth angle (in degrees)?
  32. 32.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  33. 33.Four angles meet at a point. Three of them are 30°, 70° and 240°. What is the fourth angle (in degrees)?
  34. 34.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  35. 35.An angle measures 180°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  36. 36.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  37. 37.Three angles together make a straight line. Two of them are 10° and 35°. What is the third angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 11 to 5. How many degrees does it turn?
  39. 39.Four angles meet at a point. Three of them are 100°, 40° and 60°. What is the fourth angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 60° and 105°. What is the third angle (in degrees)?

Answer key

  1. 145
  2. Reflex
  3. 150
  4. 150
  5. Right
  6. 90
  7. West
  8. 30
  9. Acute
  10. Obtuse
  11. 30
  12. 20
  13. 270
  14. 55
  15. 45
  16. South
  17. 300
  18. 210
  19. 45
  20. Acute
  21. 85
  22. West
  23. 135
  24. 45
  25. 10
  26. 30
  27. North
  28. 30
  29. Reflex
  30. 10
  31. 20
  32. 40
  33. 20
  34. 15
  35. Straight
  36. 210
  37. 135
  38. 180
  39. 160
  40. 15

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