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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 368 · 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 20°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  2. 2.An angle measures 30°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  3. 3.An angle measures 5°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  4. 4.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  5. 5.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  6. 6.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
  7. 7.You face North and turn clockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East
  8. 8.An angle measures 155°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  9. 9.Three angles together make a straight line. Two of them are 55° and 65°. What is the third angle (in degrees)?
  10. 10.You face North and turn clockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  11. 11.Three angles together make a straight line. Two of them are 35° and 30°. What is the third angle (in degrees)?
  12. 12.An angle measures 215°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  13. 13.The minute hand of a clock turns clockwise from 6 to 12. How many degrees does it turn?
  14. 14.An angle measures 15°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  15. 15.Four angles meet at a point. Three of them are 70°, 80° and 70°. What is the fourth angle (in degrees)?
  16. 16.An angle measures 180°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  17. 17.The minute hand of a clock turns clockwise from 2 to 6. How many degrees does it turn?
  18. 18.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 12 to 9. How many degrees does it turn?
  20. 20.Three angles together make a straight line. Two of them are 30° and 80°. What is the third angle (in degrees)?
  21. 21.An angle measures 135°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  22. 22.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  23. 23.Four angles meet at a point. Three of them are 30°, 30° and 280°. What is the fourth angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 70° and 40°. What is the third angle (in degrees)?
  25. 25.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  26. 26.An angle measures 70°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  27. 27.Three angles together make a straight line. Two of them are 35° and 55°. What is the third angle (in degrees)?
  28. 28.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  29. 29.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
  30. 30.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 95° and 20°. What is the third angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 40°, 70° and 100°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 2 to 12. How many degrees does it turn?
  34. 34.Four angles meet at a point. Three of them are 30°, 60° and 110°. What is the fourth angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 95° and 60°. What is the third angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 10° and 105°. What is the third angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 75° and 45°. What is the third angle (in degrees)?
  38. 38.Four angles meet at a point. Three of them are 60°, 60° and 220°. What is the fourth angle (in degrees)?
  39. 39.Three angles together make a straight line. Two of them are 15° and 15°. What is the third angle (in degrees)?
  40. 40.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Straight

Answer key

  1. Acute
  2. Acute
  3. Acute
  4. 30
  5. 15
  6. South
  7. West
  8. Obtuse
  9. 60
  10. South
  11. 115
  12. Reflex
  13. 180
  14. Acute
  15. 140
  16. Straight
  17. 120
  18. 60
  19. 270
  20. 70
  21. Obtuse
  22. 72
  23. 20
  24. 70
  25. 40
  26. Acute
  27. 90
  28. East
  29. 210
  30. 90
  31. 65
  32. 150
  33. 300
  34. 160
  35. 25
  36. 65
  37. 60
  38. 20
  39. 150
  40. Right

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