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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 421 · 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 35° and 35°. What is the third angle (in degrees)?
  2. 2.The minute hand of a clock turns clockwise from 2 to 6. How many degrees does it turn?
  3. 3.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  4. 4.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  5. 5.The minute hand of a clock turns clockwise from 4 to 3. How many degrees does it turn?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  7. 7.Four angles meet at a point. Three of them are 30°, 80° and 180°. What is the fourth angle (in degrees)?
  8. 8.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
  9. 9.Three angles together make a straight line. Two of them are 10° and 100°. What is the third angle (in degrees)?
  10. 10.The minute hand of a clock turns clockwise from 3 to 12. How many degrees does it turn?
  11. 11.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  12. 12.An angle measures 300°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  13. 13.An angle measures 205°. What kind of angle is it? (a) Reflex (b) Straight (c) Right
  14. 14.Three angles together make a straight line. Two of them are 30° and 55°. What is the third angle (in degrees)?
  15. 15.An angle measures 40°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  16. 16.The minute hand of a clock turns clockwise from 2 to 10. How many degrees does it turn?
  17. 17.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
  18. 18.Four angles meet at a point. Three of them are 30°, 100° and 60°. What is the fourth angle (in degrees)?
  19. 19.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 30° and 45°. What is the third angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 35° and 50°. What is the third angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 85° and 75°. What is the third angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 15° and 70°. What is the third angle (in degrees)?
  24. 24.You face North and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South
  25. 25.An angle measures 330°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  26. 26.An angle measures 160°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  27. 27.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  28. 28.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  29. 29.An angle measures 15°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  30. 30.Three angles together make a straight line. Two of them are 40° and 90°. What is the third angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 15° and 120°. What is the third angle (in degrees)?
  32. 32.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  33. 33.Four angles meet at a point. Three of them are 30°, 40° and 130°. What is the fourth angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 80°, 60° and 30°. What is the fourth angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  36. 36.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  37. 37.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  38. 38.An angle measures 100°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  39. 39.Four angles meet at a point. Three of them are 80°, 100° and 70°. What is the fourth angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 8 to 4. How many degrees does it turn?

Answer key

  1. 110
  2. 120
  3. South
  4. 30
  5. 330
  6. Straight
  7. 70
  8. East
  9. 70
  10. 270
  11. 45
  12. Reflex
  13. Reflex
  14. 95
  15. Acute
  16. 240
  17. 90
  18. 170
  19. 20
  20. 105
  21. 95
  22. 20
  23. 95
  24. East
  25. Reflex
  26. Obtuse
  27. 36
  28. 15
  29. Acute
  30. 50
  31. 45
  32. Right
  33. 160
  34. 190
  35. 300
  36. 120
  37. Obtuse
  38. Obtuse
  39. 110
  40. 240

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