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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 642 · 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.Four angles meet at a point. Three of them are 40°, 80° and 40°. What is the fourth angle (in degrees)?
  2. 2.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 45° and 55°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 15° and 45°. What is the third angle (in degrees)?
  5. 5.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  6. 6.Four angles meet at a point. Three of them are 30°, 40° and 210°. What is the fourth angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 30°, 60° and 210°. What is the fourth angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 10° and 130°. What is the third angle (in degrees)?
  9. 9.You face West and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  10. 10.An angle measures 115°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  11. 11.The minute hand of a clock turns clockwise from 3 to 6. How many degrees does it turn?
  12. 12.Four angles meet at a point. Three of them are 30°, 80° and 110°. What is the fourth angle (in degrees)?
  13. 13.Three angles together make a straight line. Two of them are 75° and 80°. What is the third angle (in degrees)?
  14. 14.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  15. 15.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 65° and 80°. What is the third angle (in degrees)?
  17. 17.An angle measures 55°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  18. 18.Four angles meet at a point. Three of them are 90°, 50° and 210°. What is the fourth angle (in degrees)?
  19. 19.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  20. 20.Three angles together make a straight line. Two of them are 50° and 40°. What is the third angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 50° and 70°. What is the third angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 10° and 15°. What is the third angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 7 to 10. How many degrees does it turn?
  24. 24.Four angles meet at a point. Three of them are 50°, 90° and 80°. What is the fourth angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 75° and 20°. What is the third angle (in degrees)?
  26. 26.An angle measures 320°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  27. 27.Four angles meet at a point. Three of them are 50°, 30° and 200°. What is the fourth angle (in degrees)?
  28. 28.The minute hand of a clock turns clockwise from 9 to 5. How many degrees does it turn?
  29. 29.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
  30. 30.An angle measures 235°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  31. 31.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) West (d) North
  32. 32.An angle measures 80°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  33. 33.An angle measures 75°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  34. 34.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) South (c) East (d) West
  35. 35.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  36. 36.An angle measures 70°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  37. 37.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 3 to 9. How many degrees does it turn?
  39. 39.The minute hand of a clock turns clockwise from 2 to 10. How many degrees does it turn?
  40. 40.Four angles meet at a point. Three of them are 90°, 70° and 30°. What is the fourth angle (in degrees)?

Answer key

  1. 200
  2. 36
  3. 80
  4. 120
  5. 120
  6. 80
  7. 60
  8. 40
  9. North
  10. Obtuse
  11. 90
  12. 140
  13. 25
  14. 60
  15. 85
  16. 35
  17. Acute
  18. 10
  19. East
  20. 90
  21. 60
  22. 155
  23. 90
  24. 140
  25. 85
  26. Reflex
  27. 80
  28. 240
  29. 90
  30. Reflex
  31. West
  32. Acute
  33. Acute
  34. North
  35. 90
  36. Acute
  37. 18
  38. 180
  39. 240
  40. 170

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