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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 484 · 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.

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  1. 1.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  2. 2.You face North and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  3. 3.Four angles meet at a point. Three of them are 50°, 40° and 190°. What is the fourth angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 60° and 10°. What is the third angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 50°, 30° and 80°. What is the fourth angle (in degrees)?
  6. 6.An angle measures 240°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
  7. 7.An angle measures 85°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  8. 8.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  9. 9.Four angles meet at a point. Three of them are 60°, 100° and 70°. What is the fourth angle (in degrees)?
  10. 10.An angle measures 150°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  11. 11.An angle measures 10°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  12. 12.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  13. 13.Four angles meet at a point. Three of them are 60°, 60° and 100°. What is the fourth angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 25° and 140°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 50° and 35°. What is the third angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  17. 17.An angle measures 40°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  18. 18.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.An angle measures 70°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  20. 20.Three angles together make a straight line. Two of them are 10° and 125°. What is the third angle (in degrees)?
  21. 21.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 100° and 20°. What is the third angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 4 to 12. How many degrees does it turn?
  24. 24.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  25. 25.An angle measures 350°. What kind of angle is it? (a) Straight (b) Right (c) Reflex
  26. 26.The minute hand of a clock turns clockwise from 6 to 12. How many degrees does it turn?
  27. 27.Three angles together make a straight line. Two of them are 100° and 65°. What is the third angle (in degrees)?
  28. 28.You face East and turn clockwise through 270°. Which direction do you face now? (a) West (b) East (c) North (d) South
  29. 29.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) West (d) South
  30. 30.An angle measures 190°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  31. 31.You face North and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  32. 32.Four angles meet at a point. Three of them are 40°, 90° and 150°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 12 to 7. How many degrees does it turn?
  34. 34.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 100° and 15°. What is the third angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 95° and 10°. What is the third angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 90°, 70° and 140°. What is the fourth angle (in degrees)?
  38. 38.An angle measures 30°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  39. 39.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  40. 40.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?

Answer key

  1. 85
  2. South
  3. 80
  4. 110
  5. 200
  6. Reflex
  7. Acute
  8. 90
  9. 130
  10. Obtuse
  11. Acute
  12. West
  13. 140
  14. 15
  15. 95
  16. 300
  17. Acute
  18. 120
  19. Acute
  20. 45
  21. 60
  22. 60
  23. 240
  24. 36
  25. Reflex
  26. 180
  27. 15
  28. North
  29. West
  30. Reflex
  31. East
  32. 80
  33. 210
  34. 210
  35. 65
  36. 75
  37. 60
  38. Acute
  39. 20
  40. 36

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