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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 514 · 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 80°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  2. 2.An angle measures 45°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  3. 3.An angle measures 175°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  4. 4.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  5. 5.An angle measures 245°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  6. 6.Four angles meet at a point. Three of them are 100°, 40° and 70°. What is the fourth angle (in degrees)?
  7. 7.Three angles together make a straight line. Two of them are 25° and 45°. What is the third angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 50° and 70°. What is the third angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 20° and 55°. What is the third angle (in degrees)?
  10. 10.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  11. 11.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  12. 12.The minute hand of a clock turns clockwise from 9 to 2. How many degrees does it turn?
  13. 13.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 75° and 65°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 25° and 115°. What is the third angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 5 to 12. How many degrees does it turn?
  17. 17.Four angles meet at a point. Three of them are 80°, 30° and 90°. What is the fourth angle (in degrees)?
  18. 18.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) South (d) West
  19. 19.Three angles together make a straight line. Two of them are 60° and 85°. What is the third angle (in degrees)?
  20. 20.Four angles meet at a point. Three of them are 30°, 90° and 60°. What is the fourth angle (in degrees)?
  21. 21.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  22. 22.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  23. 23.Four angles meet at a point. Three of them are 40°, 80° and 70°. What is the fourth angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 100° and 25°. What is the third angle (in degrees)?
  25. 25.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) West (d) North
  26. 26.The minute hand of a clock turns clockwise from 10 to 9. How many degrees does it turn?
  27. 27.You face East and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) North (d) East
  28. 28.Four angles meet at a point. Three of them are 100°, 50° and 160°. What is the fourth angle (in degrees)?
  29. 29.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) East (c) South (d) North
  30. 30.Three angles together make a straight line. Two of them are 75° and 35°. What is the third angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 30° and 75°. What is the third angle (in degrees)?
  32. 32.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  33. 33.An angle measures 120°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  34. 34.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South
  35. 35.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  36. 36.An angle measures 235°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  37. 37.Three angles together make a straight line. Two of them are 80° and 85°. What is the third angle (in degrees)?
  38. 38.An angle measures 90°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  39. 39.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  40. 40.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?

Answer key

  1. Acute
  2. Acute
  3. Obtuse
  4. 45
  5. Reflex
  6. 150
  7. 110
  8. 60
  9. 105
  10. Obtuse
  11. East
  12. 150
  13. 60
  14. 40
  15. 40
  16. 210
  17. 160
  18. West
  19. 35
  20. 180
  21. South
  22. East
  23. 170
  24. 55
  25. West
  26. 330
  27. South
  28. 50
  29. South
  30. 70
  31. 75
  32. North
  33. Obtuse
  34. West
  35. Straight
  36. Reflex
  37. 15
  38. Right
  39. 45
  40. 36

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