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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 567 · 40 sums
TalentJR

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.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  2. 2.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  3. 3.Three angles together make a straight line. Two of them are 20° and 100°. What is the third angle (in degrees)?
  4. 4.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  5. 5.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  6. 6.An angle measures 125°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  7. 7.The minute hand of a clock turns clockwise from 3 to 7. How many degrees does it turn?
  8. 8.Three angles together make a straight line. Two of them are 35° and 50°. What is the third angle (in degrees)?
  9. 9.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  10. 10.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) East (c) North (d) South
  11. 11.Three angles together make a straight line. Two of them are 70° and 100°. What is the third angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 60° and 10°. What is the third angle (in degrees)?
  13. 13.Four angles meet at a point. Three of them are 30°, 90° and 80°. What is the fourth angle (in degrees)?
  14. 14.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  15. 15.An angle measures 30°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  16. 16.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  17. 17.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  18. 18.An angle measures 320°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  19. 19.Three angles together make a straight line. Two of them are 25° and 65°. What is the third angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 10 to 9. How many degrees does it turn?
  21. 21.Three angles together make a straight line. Two of them are 40° and 65°. What is the third angle (in degrees)?
  22. 22.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  23. 23.An angle measures 20°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  24. 24.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) East (c) North (d) West
  25. 25.The minute hand of a clock turns clockwise from 7 to 1. How many degrees does it turn?
  26. 26.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  27. 27.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  28. 28.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  29. 29.An angle measures 70°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  30. 30.An angle measures 215°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  31. 31.Three angles together make a straight line. Two of them are 65° and 105°. What is the third angle (in degrees)?
  32. 32.An angle measures 180°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  33. 33.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 95° and 50°. What is the third angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 10° and 70°. What is the third angle (in degrees)?
  36. 36.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  37. 37.Three angles together make a straight line. Two of them are 90° and 50°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 45° and 55°. What is the third angle (in degrees)?
  39. 39.You face South and turn clockwise through 180°. Which direction do you face now? (a) East (b) South (c) West (d) North
  40. 40.Three angles together make a straight line. Two of them are 35° and 115°. What is the third angle (in degrees)?

Answer key

  1. 18
  2. 90
  3. 60
  4. 30
  5. 30
  6. Obtuse
  7. 120
  8. 95
  9. Right
  10. East
  11. 10
  12. 110
  13. 160
  14. 40
  15. Acute
  16. 45
  17. 90
  18. Reflex
  19. 90
  20. 330
  21. 75
  22. 20
  23. Acute
  24. East
  25. 180
  26. 10
  27. 120
  28. 72
  29. Acute
  30. Reflex
  31. 10
  32. Straight
  33. 15
  34. 35
  35. 100
  36. North
  37. 40
  38. 80
  39. North
  40. 30

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