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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 85 · 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 215°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  2. 2.An angle measures 80°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  3. 3.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  4. 4.Four angles meet at a point. Three of them are 30°, 30° and 80°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 50° and 85°. What is the third angle (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  7. 7.Four angles meet at a point. Three of them are 80°, 80° and 190°. What is the fourth angle (in degrees)?
  8. 8.You face North and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) South (d) North
  9. 9.Three angles together make a straight line. Two of them are 25° and 30°. What is the third angle (in degrees)?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  11. 11.The minute hand of a clock turns clockwise from 9 to 12. How many degrees does it turn?
  12. 12.An angle measures 145°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  13. 13.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
  14. 14.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  15. 15.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  16. 16.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  17. 17.Four angles meet at a point. Three of them are 40°, 100° and 140°. What is the fourth angle (in degrees)?
  18. 18.An angle measures 250°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  19. 19.Three angles together make a straight line. Two of them are 25° and 105°. What is the third angle (in degrees)?
  20. 20.An angle measures 130°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  21. 21.Four angles meet at a point. Three of them are 80°, 80° and 90°. What is the fourth angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 9 to 1. How many degrees does it turn?
  23. 23.Three angles together make a straight line. Two of them are 55° and 80°. What is the third angle (in degrees)?
  24. 24.You face South and turn clockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  25. 25.An angle measures 30°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  26. 26.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) West (d) South
  27. 27.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
  28. 28.An angle measures 155°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  29. 29.Three angles together make a straight line. Two of them are 70° and 20°. What is the third angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 2 to 5. How many degrees does it turn?
  31. 31.The minute hand of a clock turns clockwise from 1 to 7. How many degrees does it turn?
  32. 32.An angle measures 50°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  33. 33.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  34. 34.Four angles meet at a point. Three of them are 50°, 80° and 180°. What is the fourth angle (in degrees)?
  35. 35.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 20° and 45°. What is the third angle (in degrees)?
  37. 37.You face West and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
  38. 38.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 70°, 70° and 50°. What is the fourth angle (in degrees)?
  40. 40.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?

Answer key

  1. Reflex
  2. Acute
  3. North
  4. 220
  5. 45
  6. Straight
  7. 10
  8. West
  9. 125
  10. Right
  11. 90
  12. Obtuse
  13. 210
  14. 120
  15. 40
  16. East
  17. 80
  18. Reflex
  19. 50
  20. Obtuse
  21. 110
  22. 120
  23. 45
  24. East
  25. Acute
  26. North
  27. 240
  28. Obtuse
  29. 90
  30. 90
  31. 180
  32. Acute
  33. South
  34. 50
  35. 45
  36. 115
  37. South
  38. 100
  39. 170
  40. 30

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