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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 878 · 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.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  2. 2.Four angles meet at a point. Three of them are 90°, 90° and 40°. What is the fourth angle (in degrees)?
  3. 3.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 30°, 90° and 140°. What is the fourth angle (in degrees)?
  5. 5.The minute hand of a clock turns clockwise from 11 to 5. How many degrees does it turn?
  6. 6.An angle measures 40°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
  7. 7.The minute hand of a clock turns clockwise from 1 to 7. How many degrees does it turn?
  8. 8.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  9. 9.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  10. 10.Four angles meet at a point. Three of them are 100°, 100° and 50°. What is the fourth angle (in degrees)?
  11. 11.The minute hand of a clock turns clockwise from 10 to 2. How many degrees does it turn?
  12. 12.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) South (c) North (d) East
  13. 13.The minute hand of a clock turns clockwise from 7 to 1. How many degrees does it turn?
  14. 14.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  15. 15.An angle measures 235°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  16. 16.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Straight (c) Right
  17. 17.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  18. 18.Four angles meet at a point. Three of them are 50°, 100° and 190°. What is the fourth angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 75° and 55°. What is the third angle (in degrees)?
  20. 20.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) East (d) South
  21. 21.Four angles meet at a point. Three of them are 80°, 100° and 60°. What is the fourth angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 30°, 50° and 220°. What is the fourth angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 25° and 75°. What is the third angle (in degrees)?
  24. 24.An angle measures 350°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  25. 25.The minute hand of a clock turns clockwise from 5 to 4. How many degrees does it turn?
  26. 26.Three angles together make a straight line. Two of them are 85° and 25°. What is the third angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 50°, 100° and 170°. What is the fourth angle (in degrees)?
  28. 28.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 95° and 20°. What is the third angle (in degrees)?
  30. 30.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 55° and 100°. What is the third angle (in degrees)?
  32. 32.An angle measures 205°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  33. 33.An angle measures 160°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  34. 34.Three angles together make a straight line. Two of them are 80° and 50°. What is the third angle (in degrees)?
  35. 35.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  36. 36.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
  37. 37.The minute hand of a clock turns clockwise from 10 to 8. How many degrees does it turn?
  38. 38.The minute hand of a clock turns clockwise from 8 to 10. How many degrees does it turn?
  39. 39.Four angles meet at a point. Three of them are 90°, 30° and 30°. What is the fourth angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 9 to 1. How many degrees does it turn?

Answer key

  1. 85
  2. 140
  3. 36
  4. 100
  5. 180
  6. Acute
  7. 180
  8. North
  9. 60
  10. 110
  11. 120
  12. South
  13. 180
  14. 45
  15. Reflex
  16. Straight
  17. 120
  18. 20
  19. 50
  20. South
  21. 120
  22. 60
  23. 80
  24. Reflex
  25. 330
  26. 70
  27. 40
  28. 18
  29. 65
  30. 45
  31. 25
  32. Reflex
  33. Obtuse
  34. 50
  35. 60
  36. 90
  37. 300
  38. 60
  39. 210
  40. 120

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