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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 554 · 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.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  2. 2.Four angles meet at a point. Three of them are 50°, 60° and 90°. What is the fourth angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 50°, 50° and 240°. What is the fourth angle (in degrees)?
  4. 4.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  5. 5.An angle measures 85°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  6. 6.You face South and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  7. 7.The minute hand of a clock turns clockwise from 11 to 5. How many degrees does it turn?
  8. 8.An angle measures 90°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
  9. 9.Three angles together make a straight line. Two of them are 90° and 30°. What is the third angle (in degrees)?
  10. 10.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  11. 11.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  12. 12.Four angles meet at a point. Three of them are 50°, 60° and 230°. What is the fourth angle (in degrees)?
  13. 13.Four angles meet at a point. Three of them are 60°, 50° and 150°. What is the fourth angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 15° and 140°. What is the third angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 50°, 70° and 150°. What is the fourth angle (in degrees)?
  16. 16.An angle measures 25°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  17. 17.Three angles together make a straight line. Two of them are 90° and 55°. What is the third angle (in degrees)?
  18. 18.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  19. 19.Three angles together make a straight line. Two of them are 35° and 105°. What is the third angle (in degrees)?
  20. 20.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  21. 21.An angle measures 200°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  22. 22.An angle measures 290°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  23. 23.Three angles together make a straight line. Two of them are 10° and 90°. What is the third angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 11 to 2. How many degrees does it turn?
  25. 25.Three angles together make a straight line. Two of them are 30° and 30°. What is the third angle (in degrees)?
  26. 26.Four angles meet at a point. Three of them are 40°, 90° and 50°. What is the fourth angle (in degrees)?
  27. 27.Three angles together make a straight line. Two of them are 25° and 90°. What is the third angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 35° and 30°. What is the third angle (in degrees)?
  29. 29.An angle measures 70°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  30. 30.An angle measures 100°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  31. 31.Three angles together make a straight line. Two of them are 65° and 15°. What is the third angle (in degrees)?
  32. 32.An angle measures 300°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  33. 33.Three angles together make a straight line. Two of them are 80° and 50°. What is the third angle (in degrees)?
  34. 34.An angle measures 125°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
  35. 35.Four angles meet at a point. Three of them are 70°, 30° and 210°. What is the fourth angle (in degrees)?
  36. 36.An angle measures 80°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  37. 37.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
  38. 38.You face East and turn clockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  39. 39.Three angles together make a straight line. Two of them are 70° and 40°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 10° and 35°. What is the third angle (in degrees)?

Answer key

  1. Obtuse
  2. 160
  3. 20
  4. North
  5. Acute
  6. West
  7. 180
  8. Right
  9. 60
  10. 60
  11. South
  12. 20
  13. 100
  14. 25
  15. 90
  16. Acute
  17. 35
  18. East
  19. 40
  20. 90
  21. Reflex
  22. Reflex
  23. 80
  24. 90
  25. 120
  26. 180
  27. 65
  28. 115
  29. Acute
  30. Obtuse
  31. 100
  32. Reflex
  33. 50
  34. Obtuse
  35. 50
  36. Acute
  37. East
  38. West
  39. 70
  40. 135

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