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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 981 · 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 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  2. 2.Four angles meet at a point. Three of them are 80°, 70° and 70°. What is the fourth angle (in degrees)?
  3. 3.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  4. 4.Four angles meet at a point. Three of them are 60°, 60° and 160°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 20° and 105°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 60°, 40° and 210°. What is the fourth angle (in degrees)?
  7. 7.Three angles together make a straight line. Two of them are 30° and 120°. What is the third angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 75° and 15°. What is the third angle (in degrees)?
  9. 9.You face North and turn clockwise through 90°. Which direction do you face now? (a) North (b) South (c) West (d) East
  10. 10.You face North and turn clockwise through 270°. Which direction do you face now? (a) South (b) North (c) East (d) West
  11. 11.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 90°, 30° and 70°. What is the fourth angle (in degrees)?
  13. 13.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 35° and 125°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 90° and 45°. What is the third angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 5 to 2. How many degrees does it turn?
  17. 17.Three angles together make a straight line. Two of them are 60° and 75°. What is the third angle (in degrees)?
  18. 18.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  20. 20.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) West (d) North
  21. 21.Four angles meet at a point. Three of them are 30°, 90° and 100°. What is the fourth angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 80° and 30°. What is the third angle (in degrees)?
  23. 23.You face West and turn clockwise through 90°. Which direction do you face now? (a) East (b) North (c) South (d) West
  24. 24.An angle measures 20°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  25. 25.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) East (c) South (d) North
  26. 26.An angle measures 10°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  27. 27.Three angles together make a straight line. Two of them are 50° and 80°. What is the third angle (in degrees)?
  28. 28.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  29. 29.Four angles meet at a point. Three of them are 70°, 90° and 50°. What is the fourth angle (in degrees)?
  30. 30.Four angles meet at a point. Three of them are 80°, 50° and 70°. What is the fourth angle (in degrees)?
  31. 31.The minute hand of a clock turns clockwise from 2 to 1. How many degrees does it turn?
  32. 32.Four angles meet at a point. Three of them are 100°, 40° and 80°. What is the fourth angle (in degrees)?
  33. 33.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  34. 34.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  35. 35.You face East and turn clockwise through 270°. Which direction do you face now? (a) South (b) West (c) North (d) East
  36. 36.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 80° and 85°. What is the third angle (in degrees)?
  38. 38.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 1 to 10. How many degrees does it turn?
  40. 40.An angle measures 165°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. Straight
  2. 140
  3. Right
  4. 80
  5. 55
  6. 50
  7. 30
  8. 90
  9. East
  10. West
  11. 40
  12. 170
  13. 18
  14. 20
  15. 45
  16. 270
  17. 45
  18. 90
  19. 60
  20. North
  21. 140
  22. 70
  23. North
  24. Acute
  25. East
  26. Acute
  27. 50
  28. 270
  29. 150
  30. 160
  31. 330
  32. 140
  33. 20
  34. 120
  35. North
  36. 60
  37. 15
  38. 45
  39. 270
  40. Obtuse

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