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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 403 · 40 sums
TalentJR

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 330°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  2. 2.An angle measures 140°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  3. 3.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  4. 4.The minute hand of a clock turns clockwise from 10 to 5. How many degrees does it turn?
  5. 5.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  6. 6.Three angles together make a straight line. Two of them are 15° and 20°. What is the third angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 50°, 30° and 210°. What is the fourth angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 50° and 10°. What is the third angle (in degrees)?
  9. 9.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  10. 10.Three angles together make a straight line. Two of them are 25° and 125°. What is the third angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 90°, 50° and 190°. What is the fourth angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 60°, 30° and 140°. What is the fourth angle (in degrees)?
  13. 13.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 90° and 20°. What is the third angle (in degrees)?
  15. 15.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
  17. 17.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) West (d) North
  18. 18.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  19. 19.The minute hand of a clock turns clockwise from 7 to 9. How many degrees does it turn?
  20. 20.Four angles meet at a point. Three of them are 100°, 70° and 170°. What is the fourth angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 50°, 80° and 80°. What is the fourth angle (in degrees)?
  22. 22.An angle measures 25°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  23. 23.Four angles meet at a point. Three of them are 80°, 40° and 130°. What is the fourth angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
  25. 25.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 9 to 5. How many degrees does it turn?
  27. 27.Four angles meet at a point. Three of them are 50°, 70° and 190°. What is the fourth angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 50° and 75°. What is the third angle (in degrees)?
  30. 30.An angle measures 45°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  31. 31.You face East and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  32. 32.The minute hand of a clock turns clockwise from 7 to 1. How many degrees does it turn?
  33. 33.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 50° and 40°. What is the third angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 60° and 55°. What is the third angle (in degrees)?
  36. 36.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  37. 37.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) South (d) West
  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.Three angles together make a straight line. Two of them are 20° and 120°. What is the third angle (in degrees)?
  40. 40.An angle measures 75°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight

Answer key

  1. Reflex
  2. Obtuse
  3. 30
  4. 210
  5. 180
  6. 145
  7. 70
  8. 120
  9. 60
  10. 30
  11. 30
  12. 130
  13. 20
  14. 70
  15. 45
  16. 180
  17. North
  18. 210
  19. 60
  20. 20
  21. 150
  22. Acute
  23. 110
  24. 210
  25. 18
  26. 240
  27. 50
  28. 10
  29. 55
  30. Acute
  31. West
  32. 180
  33. 36
  34. 90
  35. 65
  36. Right
  37. West
  38. 100
  39. 40
  40. Acute

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