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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 198 · 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.You face South and turn clockwise through 270°. Which direction do you face now? (a) South (b) West (c) East (d) North
  2. 2.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  3. 3.An angle measures 120°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  4. 4.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 30°, 90° and 230°. What is the fourth angle (in degrees)?
  6. 6.An angle measures 250°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  7. 7.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
  8. 8.Three angles together make a straight line. Two of them are 65° and 25°. What is the third angle (in degrees)?
  9. 9.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 50° and 80°. What is the third angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 100°, 90° and 120°. What is the fourth angle (in degrees)?
  12. 12.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  13. 13.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) East (c) South (d) North
  14. 14.An angle measures 65°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  15. 15.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?
  16. 16.You face East and turn clockwise through 180°. Which direction do you face now? (a) South (b) East (c) West (d) North
  17. 17.Four angles meet at a point. Three of them are 70°, 40° and 50°. What is the fourth angle (in degrees)?
  18. 18.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  19. 19.Three angles together make a straight line. Two of them are 90° and 25°. What is the third angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 75° and 75°. What is the third angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 50° and 30°. What is the third angle (in degrees)?
  22. 22.An angle measures 220°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  23. 23.Three angles together make a straight line. Two of them are 30° and 60°. What is the third angle (in degrees)?
  24. 24.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 15° and 60°. What is the third angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
  27. 27.An angle measures 90°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  28. 28.An angle measures 175°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  29. 29.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
  30. 30.Four angles meet at a point. Three of them are 40°, 80° and 210°. What is the fourth angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 60°, 100° and 140°. What is the fourth angle (in degrees)?
  32. 32.You face South and turn clockwise through 180°. Which direction do you face now? (a) North (b) West (c) South (d) East
  33. 33.The minute hand of a clock turns clockwise from 6 to 11. How many degrees does it turn?
  34. 34.Three angles together make a straight line. Two of them are 60° and 105°. What is the third angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 12 to 1. How many degrees does it turn?
  36. 36.Three angles together make a straight line. Two of them are 70° and 55°. What is the third angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 15° and 120°. What is the third angle (in degrees)?
  38. 38.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  39. 39.An angle measures 10°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  40. 40.Four angles meet at a point. Three of them are 100°, 70° and 50°. What is the fourth angle (in degrees)?

Answer key

  1. East
  2. Straight
  3. Obtuse
  4. 15
  5. 10
  6. Reflex
  7. 330
  8. 90
  9. 30
  10. 50
  11. 50
  12. 36
  13. North
  14. Acute
  15. 330
  16. West
  17. 200
  18. East
  19. 65
  20. 30
  21. 100
  22. Reflex
  23. 90
  24. 45
  25. 105
  26. 210
  27. Right
  28. Obtuse
  29. 90
  30. 30
  31. 60
  32. North
  33. 150
  34. 15
  35. 30
  36. 55
  37. 45
  38. 18
  39. Acute
  40. 140

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