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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 726 · 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 180°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  2. 2.Four angles meet at a point. Three of them are 40°, 70° and 40°. What is the fourth angle (in degrees)?
  3. 3.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  4. 4.The minute hand of a clock turns clockwise from 3 to 2. How many degrees does it turn?
  5. 5.Three angles together make a straight line. Two of them are 55° and 50°. What is the third angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 85° and 20°. What is the third angle (in degrees)?
  7. 7.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  8. 8.An angle measures 165°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  9. 9.Four angles meet at a point. Three of them are 90°, 30° and 130°. What is the fourth angle (in degrees)?
  10. 10.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
  11. 11.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  12. 12.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  13. 13.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) West (c) South (d) North
  14. 14.Three angles together make a straight line. Two of them are 100° and 60°. What is the third angle (in degrees)?
  15. 15.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 90°, 50° and 90°. What is the fourth angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 70°, 40° and 110°. What is the fourth angle (in degrees)?
  18. 18.An angle measures 330°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  19. 19.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) North (d) West
  20. 20.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) East (c) West (d) North
  21. 21.An angle measures 60°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  22. 22.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 100° and 20°. What is the third angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 60°, 50° and 110°. What is the fourth angle (in degrees)?
  25. 25.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) North (d) East
  26. 26.An angle measures 345°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  27. 27.An angle measures 55°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  28. 28.Four angles meet at a point. Three of them are 90°, 50° and 170°. What is the fourth angle (in degrees)?
  29. 29.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  30. 30.Four angles meet at a point. Three of them are 40°, 80° and 30°. What is the fourth angle (in degrees)?
  31. 31.You face East and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  32. 32.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  33. 33.Four angles meet at a point. Three of them are 70°, 70° and 40°. What is the fourth angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 9 to 11. How many degrees does it turn?
  35. 35.Four angles meet at a point. Three of them are 100°, 90° and 150°. What is the fourth angle (in degrees)?
  36. 36.The minute hand of a clock turns clockwise from 2 to 7. How many degrees does it turn?
  37. 37.Three angles together make a straight line. Two of them are 55° and 55°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 40° and 65°. What is the third angle (in degrees)?
  39. 39.An angle measures 265°. What kind of angle is it? (a) Straight (b) Right (c) Reflex
  40. 40.An angle measures 120°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex

Answer key

  1. Straight
  2. 210
  3. Obtuse
  4. 330
  5. 75
  6. 75
  7. Right
  8. Obtuse
  9. 110
  10. South
  11. 45
  12. 40
  13. North
  14. 20
  15. 90
  16. 130
  17. 140
  18. Reflex
  19. West
  20. North
  21. Acute
  22. 45
  23. 60
  24. 140
  25. North
  26. Reflex
  27. Acute
  28. 50
  29. 36
  30. 210
  31. South
  32. 270
  33. 180
  34. 60
  35. 20
  36. 150
  37. 70
  38. 75
  39. Reflex
  40. Obtuse

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