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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 925 · 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 15° and 95°. What is the third angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 20° and 45°. What is the third angle (in degrees)?
  3. 3.An angle measures 40°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  4. 4.Four angles meet at a point. Three of them are 40°, 80° and 230°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 20° and 55°. What is the third angle (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  7. 7.An angle measures 65°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  8. 8.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  9. 9.An angle measures 15°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  10. 10.You face East and turn clockwise through 90°. Which direction do you face now? (a) West (b) East (c) North (d) South
  11. 11.Four angles meet at a point. Three of them are 90°, 80° and 70°. What is the fourth angle (in degrees)?
  12. 12.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  13. 13.An angle measures 125°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  14. 14.You face East and turn clockwise through 270°. Which direction do you face now? (a) North (b) South (c) East (d) West
  15. 15.An angle measures 130°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  16. 16.The minute hand of a clock turns clockwise from 9 to 12. How many degrees does it turn?
  17. 17.Four angles meet at a point. Three of them are 70°, 40° and 240°. What is the fourth angle (in degrees)?
  18. 18.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.Four angles meet at a point. Three of them are 70°, 50° and 180°. What is the fourth angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 100° and 55°. What is the third angle (in degrees)?
  21. 21.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 12 to 2. How many degrees does it turn?
  23. 23.You face North and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) South (d) East
  24. 24.Four angles meet at a point. Three of them are 80°, 80° and 160°. What is the fourth angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 100°, 90° and 50°. What is the fourth angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 50° and 35°. What is the third angle (in degrees)?
  27. 27.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 15° and 15°. What is the third angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 25° and 55°. What is the third angle (in degrees)?
  30. 30.Three angles together make a straight line. Two of them are 45° and 35°. What is the third angle (in degrees)?
  31. 31.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  32. 32.Four angles meet at a point. Three of them are 40°, 60° and 160°. What is the fourth angle (in degrees)?
  33. 33.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 3 to 8. How many degrees does it turn?
  35. 35.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  36. 36.Four angles meet at a point. Three of them are 70°, 30° and 130°. What is the fourth angle (in degrees)?
  37. 37.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  38. 38.Four angles meet at a point. Three of them are 100°, 40° and 140°. What is the fourth angle (in degrees)?
  39. 39.An angle measures 220°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  40. 40.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) South (c) West (d) East

Answer key

  1. 70
  2. 115
  3. Acute
  4. 10
  5. 105
  6. Right
  7. Acute
  8. 90
  9. Acute
  10. South
  11. 120
  12. 72
  13. Obtuse
  14. North
  15. Obtuse
  16. 90
  17. 10
  18. 120
  19. 60
  20. 25
  21. 15
  22. 60
  23. West
  24. 40
  25. 120
  26. 95
  27. 30
  28. 150
  29. 100
  30. 100
  31. Straight
  32. 100
  33. 36
  34. 150
  35. East
  36. 130
  37. West
  38. 80
  39. Reflex
  40. East

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