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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 923 · 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.Four angles meet at a point. Three of them are 30°, 30° and 230°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 85° and 10°. What is the third angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 30°, 80° and 200°. What is the fourth angle (in degrees)?
  4. 4.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 75° and 65°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 90°, 100° and 60°. What is the fourth angle (in degrees)?
  7. 7.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) South (c) West (d) East
  8. 8.An angle measures 90°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  9. 9.Three angles together make a straight line. Two of them are 90° and 35°. What is the third angle (in degrees)?
  10. 10.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  11. 11.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) West (c) North (d) East
  12. 12.The minute hand of a clock turns clockwise from 2 to 4. How many degrees does it turn?
  13. 13.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?
  14. 14.Four angles meet at a point. Three of them are 90°, 100° and 130°. What is the fourth angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 10° and 120°. What is the third angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 55° and 10°. What is the third angle (in degrees)?
  17. 17.An angle measures 200°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  18. 18.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.You face South and turn clockwise through 90°. Which direction do you face now? (a) South (b) East (c) North (d) West
  20. 20.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  21. 21.An angle measures 250°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  22. 22.The minute hand of a clock turns clockwise from 5 to 11. How many degrees does it turn?
  23. 23.An angle measures 140°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  24. 24.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  25. 25.Four angles meet at a point. Three of them are 40°, 80° and 110°. What is the fourth angle (in degrees)?
  26. 26.An angle measures 235°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  27. 27.An angle measures 160°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  28. 28.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 30° and 80°. What is the third angle (in degrees)?
  30. 30.An angle measures 165°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  31. 31.Three angles together make a straight line. Two of them are 100° and 30°. What is the third angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 45° and 95°. What is the third angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 6 to 7. How many degrees does it turn?
  34. 34.Four angles meet at a point. Three of them are 90°, 100° and 70°. What is the fourth angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 55° and 50°. What is the third angle (in degrees)?
  36. 36.You face West and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South
  37. 37.An angle measures 325°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  38. 38.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  39. 39.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 100°, 90° and 140°. What is the fourth angle (in degrees)?

Answer key

  1. 70
  2. 85
  3. 50
  4. 72
  5. 40
  6. 110
  7. North
  8. Right
  9. 55
  10. 15
  11. South
  12. 60
  13. 330
  14. 40
  15. 50
  16. 115
  17. Reflex
  18. 60
  19. West
  20. Straight
  21. Reflex
  22. 180
  23. Obtuse
  24. 90
  25. 130
  26. Reflex
  27. Obtuse
  28. 90
  29. 70
  30. Obtuse
  31. 50
  32. 40
  33. 30
  34. 100
  35. 75
  36. North
  37. Reflex
  38. 30
  39. 10
  40. 30

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