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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 457 · 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 North and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) South (d) East
  2. 2.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  3. 3.An angle measures 95°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  4. 4.Three angles together make a straight line. Two of them are 10° and 145°. What is the third angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 10° and 125°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 60°, 80° and 120°. What is the fourth angle (in degrees)?
  7. 7.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  8. 8.Three angles together make a straight line. Two of them are 25° and 30°. What is the third angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 30°, 60° and 140°. What is the fourth angle (in degrees)?
  10. 10.Four angles meet at a point. Three of them are 70°, 50° and 60°. What is the fourth angle (in degrees)?
  11. 11.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  12. 12.Three angles together make a straight line. Two of them are 50° and 85°. What is the third angle (in degrees)?
  13. 13.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  14. 14.An angle measures 35°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  15. 15.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  16. 16.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  17. 17.Three angles together make a straight line. Two of them are 65° and 35°. What is the third angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 90° and 35°. What is the third angle (in degrees)?
  19. 19.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 40° and 30°. What is the third angle (in degrees)?
  21. 21.An angle measures 245°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
  22. 22.The minute hand of a clock turns clockwise from 8 to 1. How many degrees does it turn?
  23. 23.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) South (c) West (d) East
  24. 24.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East
  25. 25.An angle measures 330°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
  26. 26.An angle measures 255°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  27. 27.Three angles together make a straight line. Two of them are 45° and 125°. What is the third angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
  29. 29.An angle measures 125°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  30. 30.The minute hand of a clock turns clockwise from 3 to 8. How many degrees does it turn?
  31. 31.The minute hand of a clock turns clockwise from 4 to 9. How many degrees does it turn?
  32. 32.The minute hand of a clock turns clockwise from 7 to 8. How many degrees does it turn?
  33. 33.Four angles meet at a point. Three of them are 70°, 100° and 90°. What is the fourth angle (in degrees)?
  34. 34.You face North and turn clockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  35. 35.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  36. 36.Three angles together make a straight line. Two of them are 50° and 10°. What is the third angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 30°, 60° and 170°. What is the fourth angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 8 to 5. How many degrees does it turn?
  39. 39.Three angles together make a straight line. Two of them are 80° and 80°. What is the third angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 40°, 90° and 160°. What is the fourth angle (in degrees)?

Answer key

  1. East
  2. Straight
  3. Obtuse
  4. 25
  5. 45
  6. 100
  7. South
  8. 125
  9. 130
  10. 180
  11. East
  12. 45
  13. West
  14. Acute
  15. 60
  16. Right
  17. 80
  18. 55
  19. 36
  20. 110
  21. Reflex
  22. 150
  23. South
  24. North
  25. Reflex
  26. Reflex
  27. 10
  28. 15
  29. Obtuse
  30. 150
  31. 150
  32. 30
  33. 100
  34. West
  35. 300
  36. 120
  37. 100
  38. 270
  39. 20
  40. 70

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