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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 217 · 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) Obtuse (b) Straight (c) Right
  2. 2.An angle measures 70°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  3. 3.An angle measures 115°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  4. 4.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) South (c) North (d) East
  5. 5.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  6. 6.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  7. 7.The minute hand of a clock turns clockwise from 4 to 7. How many degrees does it turn?
  8. 8.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 15° and 115°. What is the third angle (in degrees)?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  11. 11.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  12. 12.You face South and turn clockwise through 270°. Which direction do you face now? (a) South (b) East (c) West (d) North
  13. 13.The minute hand of a clock turns clockwise from 10 to 7. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 15° and 75°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 70° and 25°. What is the third angle (in degrees)?
  16. 16.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 100° and 70°. What is the third angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 45° and 40°. What is the third angle (in degrees)?
  19. 19.An angle measures 80°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  20. 20.The minute hand of a clock turns clockwise from 3 to 2. How many degrees does it turn?
  21. 21.Four angles meet at a point. Three of them are 70°, 100° and 110°. What is the fourth angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 100°, 80° and 120°. What is the fourth angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 4 to 12. How many degrees does it turn?
  24. 24.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  25. 25.You face East and turn clockwise through 90°. Which direction do you face now? (a) South (b) North (c) West (d) East
  26. 26.Three angles together make a straight line. Two of them are 20° and 80°. What is the third angle (in degrees)?
  27. 27.An angle measures 110°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  28. 28.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 30°, 100° and 30°. What is the fourth angle (in degrees)?
  30. 30.Three angles together make a straight line. Two of them are 10° and 125°. What is the third angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 80°, 80° and 180°. What is the fourth angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 95° and 50°. What is the third angle (in degrees)?
  33. 33.Four angles meet at a point. Three of them are 30°, 40° and 150°. What is the fourth angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 90° and 50°. What is the third angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 80° and 30°. What is the third angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 20° and 30°. What is the third angle (in degrees)?
  37. 37.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  38. 38.An angle measures 345°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  39. 39.Four angles meet at a point. Three of them are 30°, 40° and 280°. What is the fourth angle (in degrees)?
  40. 40.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?

Answer key

  1. Straight
  2. Acute
  3. Obtuse
  4. East
  5. 60
  6. North
  7. 90
  8. 18
  9. 50
  10. Right
  11. 20
  12. East
  13. 270
  14. 90
  15. 85
  16. 45
  17. 10
  18. 95
  19. Acute
  20. 330
  21. 80
  22. 60
  23. 240
  24. 180
  25. South
  26. 80
  27. Obtuse
  28. 45
  29. 200
  30. 45
  31. 20
  32. 35
  33. 140
  34. 40
  35. 70
  36. 130
  37. 30
  38. Reflex
  39. 10
  40. 40

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