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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 664 · 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) Reflex (b) Right (c) Straight
  2. 2.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) West (c) East (d) North
  3. 3.Three angles together make a straight line. Two of them are 50° and 30°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 15° and 65°. What is the third angle (in degrees)?
  5. 5.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  6. 6.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  7. 7.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
  8. 8.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 100° and 45°. What is the third angle (in degrees)?
  10. 10.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  11. 11.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  12. 12.An angle measures 125°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  13. 13.The minute hand of a clock turns clockwise from 8 to 12. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 30° and 30°. What is the third angle (in degrees)?
  15. 15.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  16. 16.Three angles together make a straight line. Two of them are 65° and 20°. What is the third angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 25° and 70°. What is the third angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  19. 19.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 50° and 35°. What is the third angle (in degrees)?
  21. 21.An angle measures 355°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  22. 22.The minute hand of a clock turns clockwise from 9 to 1. How many degrees does it turn?
  23. 23.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 7 to 9. How many degrees does it turn?
  25. 25.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  26. 26.Four angles meet at a point. Three of them are 50°, 40° and 60°. What is the fourth angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 50°, 80° and 70°. What is the fourth angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 60° and 20°. What is the third angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 70°, 100° and 180°. What is the fourth angle (in degrees)?
  30. 30.An angle measures 140°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  31. 31.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  32. 32.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) North (c) South (d) West
  33. 33.An angle measures 25°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  34. 34.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  35. 35.Three angles together make a straight line. Two of them are 15° and 90°. What is the third angle (in degrees)?
  36. 36.An angle measures 175°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  37. 37.Three angles together make a straight line. Two of them are 70° and 95°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 70° and 25°. What is the third angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 6 to 7. How many degrees does it turn?
  40. 40.An angle measures 45°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. Straight
  2. North
  3. 100
  4. 100
  5. 20
  6. 18
  7. 90
  8. 36
  9. 35
  10. 45
  11. 60
  12. Obtuse
  13. 120
  14. 120
  15. Obtuse
  16. 95
  17. 85
  18. 85
  19. 72
  20. 95
  21. Reflex
  22. 120
  23. 60
  24. 60
  25. East
  26. 210
  27. 160
  28. 100
  29. 10
  30. Obtuse
  31. 270
  32. West
  33. Acute
  34. West
  35. 75
  36. Obtuse
  37. 15
  38. 85
  39. 30
  40. Acute

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