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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 277 · 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.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 25° and 125°. What is the third angle (in degrees)?
  3. 3.An angle measures 70°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  4. 4.Four angles meet at a point. Three of them are 70°, 50° and 210°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  6. 6.An angle measures 190°. 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°, 40° and 280°. What is the fourth angle (in degrees)?
  8. 8.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 90°, 50° and 150°. What is the fourth angle (in degrees)?
  10. 10.Four angles meet at a point. Three of them are 90°, 70° and 80°. What is the fourth angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 50°, 60° and 110°. What is the fourth angle (in degrees)?
  12. 12.The minute hand of a clock turns clockwise from 10 to 6. How many degrees does it turn?
  13. 13.The minute hand of a clock turns clockwise from 6 to 8. How many degrees does it turn?
  14. 14.The minute hand of a clock turns clockwise from 10 to 4. How many degrees does it turn?
  15. 15.Three angles together make a straight line. Two of them are 70° and 95°. What is the third angle (in degrees)?
  16. 16.An angle measures 175°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  17. 17.An angle measures 160°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  18. 18.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 7 to 9. How many degrees does it turn?
  21. 21.The minute hand of a clock turns clockwise from 7 to 11. How many degrees does it turn?
  22. 22.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  23. 23.An angle measures 5°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  24. 24.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  25. 25.An angle measures 345°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  26. 26.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) North (c) West (d) East
  27. 27.The minute hand of a clock turns clockwise from 9 to 12. How many degrees does it turn?
  28. 28.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 95° and 20°. What is the third angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 9 to 11. How many degrees does it turn?
  31. 31.An angle measures 295°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  32. 32.Three angles together make a straight line. Two of them are 45° and 120°. What is the third angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 35° and 100°. What is the third angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 10 to 9. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 40° and 40°. What is the third angle (in degrees)?
  36. 36.Four angles meet at a point. Three of them are 30°, 50° and 180°. What is the fourth angle (in degrees)?
  37. 37.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 50° and 20°. What is the third angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 60°, 80° and 40°. What is the fourth angle (in degrees)?
  40. 40.An angle measures 200°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex

Answer key

  1. 90
  2. 30
  3. Acute
  4. 30
  5. 100
  6. Reflex
  7. 10
  8. 45
  9. 70
  10. 120
  11. 140
  12. 240
  13. 60
  14. 180
  15. 15
  16. Obtuse
  17. Obtuse
  18. 120
  19. 18
  20. 60
  21. 120
  22. Right
  23. Acute
  24. Straight
  25. Reflex
  26. North
  27. 90
  28. 60
  29. 65
  30. 60
  31. Reflex
  32. 15
  33. 45
  34. 330
  35. 100
  36. 100
  37. 36
  38. 110
  39. 180
  40. Reflex

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