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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 206 · 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 270°. Which direction do you face now? (a) West (b) East (c) North (d) South
  2. 2.An angle measures 280°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  3. 3.An angle measures 80°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  4. 4.The minute hand of a clock turns clockwise from 8 to 5. How many degrees does it turn?
  5. 5.Four angles meet at a point. Three of them are 90°, 30° and 70°. What is the fourth angle (in degrees)?
  6. 6.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
  7. 7.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  8. 8.Four angles meet at a point. Three of them are 60°, 30° and 110°. What is the fourth angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 100° and 10°. What is the third angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 90° and 55°. What is the third angle (in degrees)?
  11. 11.Three angles together make a straight line. Two of them are 10° and 90°. What is the third angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 40°, 30° and 150°. What is the fourth angle (in degrees)?
  13. 13.Three angles together make a straight line. Two of them are 65° and 60°. What is the third angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 100° and 45°. What is the third angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 50°, 80° and 110°. What is the fourth angle (in degrees)?
  16. 16.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  17. 17.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?
  18. 18.Three angles together make a straight line. Two of them are 25° and 55°. What is the third angle (in degrees)?
  19. 19.Four angles meet at a point. Three of them are 40°, 50° and 80°. What is the fourth angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 20° and 40°. What is the third angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 40°, 70° and 100°. What is the fourth angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 60°, 30° and 150°. What is the fourth angle (in degrees)?
  23. 23.You face South and turn clockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East
  24. 24.Three angles together make a straight line. Two of them are 45° and 25°. What is the third angle (in degrees)?
  25. 25.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  26. 26.An angle measures 165°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  27. 27.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  28. 28.Three angles together make a straight line. Two of them are 10° and 115°. What is the third angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 7 to 6. How many degrees does it turn?
  30. 30.An angle measures 130°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  31. 31.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) South (c) East (d) West
  32. 32.Three angles together make a straight line. Two of them are 30° and 70°. What is the third angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 10° and 100°. What is the third angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 10 to 12. How many degrees does it turn?
  35. 35.An angle measures 125°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  36. 36.Three angles together make a straight line. Two of them are 40° and 75°. What is the third angle (in degrees)?
  37. 37.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) North (c) South (d) East
  38. 38.Four angles meet at a point. Three of them are 100°, 80° and 100°. What is the fourth angle (in degrees)?
  39. 39.An angle measures 30°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  40. 40.Four angles meet at a point. Three of them are 40°, 90° and 180°. What is the fourth angle (in degrees)?

Answer key

  1. West
  2. Reflex
  3. Acute
  4. 270
  5. 170
  6. 330
  7. Right
  8. 160
  9. 70
  10. 35
  11. 80
  12. 140
  13. 55
  14. 35
  15. 120
  16. Straight
  17. 330
  18. 100
  19. 190
  20. 120
  21. 150
  22. 120
  23. East
  24. 110
  25. West
  26. Obtuse
  27. 300
  28. 55
  29. 330
  30. Obtuse
  31. West
  32. 80
  33. 70
  34. 60
  35. Obtuse
  36. 65
  37. South
  38. 80
  39. Acute
  40. 50

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