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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 877 · 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 235°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  2. 2.An angle measures 265°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  3. 3.Four angles meet at a point. Three of them are 60°, 80° and 180°. What is the fourth angle (in degrees)?
  4. 4.The minute hand of a clock turns clockwise from 8 to 2. How many degrees does it turn?
  5. 5.The minute hand of a clock turns clockwise from 3 to 5. How many degrees does it turn?
  6. 6.Three angles together make a straight line. Two of them are 75° and 70°. What is the third angle (in degrees)?
  7. 7.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  8. 8.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 70°, 30° and 60°. What is the fourth angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 65° and 60°. What is the third angle (in degrees)?
  11. 11.Three angles together make a straight line. Two of them are 65° and 90°. What is the third angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 20° and 60°. What is the third angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 10 to 6. How many degrees does it turn?
  14. 14.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  15. 15.Four angles meet at a point. Three of them are 90°, 80° and 170°. What is the fourth angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 70°, 100° and 140°. What is the fourth angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 30°, 100° and 110°. What is the fourth angle (in degrees)?
  18. 18.The minute hand of a clock turns clockwise from 3 to 8. How many degrees does it turn?
  19. 19.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
  20. 20.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  21. 21.Three angles together make a straight line. Two of them are 55° and 60°. What is the third angle (in degrees)?
  22. 22.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) East (c) South (d) North
  23. 23.The minute hand of a clock turns clockwise from 4 to 11. How many degrees does it turn?
  24. 24.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
  25. 25.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  26. 26.Three angles together make a straight line. Two of them are 80° and 85°. What is the third angle (in degrees)?
  27. 27.An angle measures 70°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  28. 28.Four angles meet at a point. Three of them are 80°, 50° and 60°. What is the fourth angle (in degrees)?
  29. 29.An angle measures 225°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  30. 30.Three angles together make a straight line. Two of them are 65° and 50°. What is the third angle (in degrees)?
  31. 31.An angle measures 105°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  32. 32.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  33. 33.Three angles together make a straight line. Two of them are 85° and 60°. What is the third angle (in degrees)?
  34. 34.An angle measures 75°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  35. 35.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  36. 36.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 100°, 50° and 200°. What is the fourth angle (in degrees)?
  38. 38.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 90°, 40° and 80°. What is the fourth angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 65° and 65°. What is the third angle (in degrees)?

Answer key

  1. Reflex
  2. Reflex
  3. 40
  4. 180
  5. 60
  6. 35
  7. 30
  8. 120
  9. 200
  10. 55
  11. 25
  12. 100
  13. 240
  14. Right
  15. 20
  16. 50
  17. 120
  18. 150
  19. 30
  20. Obtuse
  21. 65
  22. South
  23. 210
  24. 330
  25. Straight
  26. 15
  27. Acute
  28. 170
  29. Reflex
  30. 65
  31. Obtuse
  32. West
  33. 35
  34. Acute
  35. 90
  36. 15
  37. 10
  38. 45
  39. 150
  40. 50

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