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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 658 · 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.An angle measures 35°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  2. 2.An angle measures 20°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  3. 3.Four angles meet at a point. Three of them are 60°, 50° and 200°. What is the fourth angle (in degrees)?
  4. 4.The minute hand of a clock turns clockwise from 1 to 9. How many degrees does it turn?
  5. 5.Three angles together make a straight line. Two of them are 50° and 95°. What is the third angle (in degrees)?
  6. 6.An angle measures 170°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  7. 7.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  8. 8.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  9. 9.Four angles meet at a point. Three of them are 80°, 30° and 100°. What is the fourth angle (in degrees)?
  10. 10.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  11. 11.The minute hand of a clock turns clockwise from 4 to 9. How many degrees does it turn?
  12. 12.Four angles meet at a point. Three of them are 40°, 40° and 190°. What is the fourth angle (in degrees)?
  13. 13.An angle measures 90°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  14. 14.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  15. 15.An angle measures 200°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  16. 16.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) North (c) West (d) South
  17. 17.An angle measures 225°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  18. 18.The minute hand of a clock turns clockwise from 1 to 5. How many degrees does it turn?
  19. 19.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 80° and 55°. What is the third angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 50°, 60° and 60°. What is the fourth angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 3 to 10. How many degrees does it turn?
  23. 23.Three angles together make a straight line. Two of them are 95° and 35°. What is the third angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 80°, 40° and 70°. What is the fourth angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 80°, 30° and 110°. What is the fourth angle (in degrees)?
  26. 26.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) North (c) East (d) West
  27. 27.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  28. 28.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  29. 29.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) East (c) South (d) North
  30. 30.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
  31. 31.Three angles together make a straight line. Two of them are 30° and 60°. What is the third angle (in degrees)?
  32. 32.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 10° and 155°. What is the third angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 25° and 135°. What is the third angle (in degrees)?
  35. 35.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  36. 36.An angle measures 65°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  37. 37.Four angles meet at a point. Three of them are 80°, 80° and 40°. What is the fourth angle (in degrees)?
  38. 38.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  39. 39.An angle measures 310°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  40. 40.An angle measures 245°. What kind of angle is it? (a) Acute (b) Right (c) Reflex

Answer key

  1. Acute
  2. Acute
  3. 50
  4. 240
  5. 35
  6. Obtuse
  7. Straight
  8. 270
  9. 150
  10. 18
  11. 150
  12. 90
  13. Right
  14. 90
  15. Reflex
  16. East
  17. Reflex
  18. 120
  19. 85
  20. 45
  21. 190
  22. 210
  23. 50
  24. 170
  25. 140
  26. South
  27. 30
  28. 60
  29. North
  30. 210
  31. 90
  32. 30
  33. 15
  34. 20
  35. 45
  36. Acute
  37. 160
  38. 45
  39. Reflex
  40. Reflex

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