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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 276 · 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.The minute hand of a clock turns clockwise from 10 to 8. How many degrees does it turn?
  2. 2.Three angles together make a straight line. Two of them are 60° and 40°. What is the third angle (in degrees)?
  3. 3.An angle measures 90°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  4. 4.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 20° and 50°. What is the third angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 65° and 80°. What is the third angle (in degrees)?
  7. 7.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  8. 8.An angle measures 135°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
  9. 9.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 25° and 145°. What is the third angle (in degrees)?
  11. 11.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) North (d) West
  12. 12.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  13. 13.An angle measures 100°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  14. 14.Four angles meet at a point. Three of them are 90°, 80° and 180°. What is the fourth angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 50°, 90° and 120°. What is the fourth angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 50° and 110°. What is the third angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 100°, 90° and 150°. What is the fourth angle (in degrees)?
  18. 18.Four angles meet at a point. Three of them are 90°, 70° and 80°. What is the fourth angle (in degrees)?
  19. 19.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 90° and 55°. What is the third angle (in degrees)?
  21. 21.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  22. 22.Three angles together make a straight line. Two of them are 35° and 45°. What is the third angle (in degrees)?
  23. 23.An angle measures 10°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  24. 24.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
  25. 25.Three angles together make a straight line. Two of them are 80° and 65°. What is the third angle (in degrees)?
  26. 26.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 80°, 60° and 170°. What is the fourth angle (in degrees)?
  28. 28.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) East (d) North
  29. 29.Three angles together make a straight line. Two of them are 80° and 80°. What is the third angle (in degrees)?
  30. 30.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  31. 31.The minute hand of a clock turns clockwise from 7 to 2. How many degrees does it turn?
  32. 32.Four angles meet at a point. Three of them are 60°, 40° and 60°. What is the fourth angle (in degrees)?
  33. 33.An angle measures 160°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  34. 34.The minute hand of a clock turns clockwise from 12 to 6. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 40° and 125°. What is the third angle (in degrees)?
  36. 36.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?
  37. 37.The minute hand of a clock turns clockwise from 6 to 7. How many degrees does it turn?
  38. 38.Three angles together make a straight line. Two of them are 50° and 95°. What is the third angle (in degrees)?
  39. 39.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) East (c) North (d) South
  40. 40.Three angles together make a straight line. Two of them are 15° and 95°. What is the third angle (in degrees)?

Answer key

  1. 300
  2. 80
  3. Right
  4. 80
  5. 110
  6. 35
  7. Straight
  8. Obtuse
  9. 30
  10. 10
  11. West
  12. 20
  13. Obtuse
  14. 10
  15. 100
  16. 20
  17. 20
  18. 120
  19. 72
  20. 35
  21. Acute
  22. 100
  23. Acute
  24. East
  25. 35
  26. 15
  27. 50
  28. East
  29. 20
  30. Obtuse
  31. 210
  32. 200
  33. Obtuse
  34. 180
  35. 15
  36. 330
  37. 30
  38. 35
  39. South
  40. 70

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