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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 101 · 40 sums
TalentJR

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.

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  1. 1.An angle measures 5°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  2. 2.Three angles together make a straight line. Two of them are 25° and 130°. What is the third angle (in degrees)?
  3. 3.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South
  4. 4.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 80°, 50° and 110°. What is the fourth angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 50° and 75°. What is the third angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 60°, 90° and 30°. What is the fourth angle (in degrees)?
  8. 8.The minute hand of a clock turns clockwise from 9 to 11. How many degrees does it turn?
  9. 9.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  11. 11.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  12. 12.Three angles together make a straight line. Two of them are 90° and 60°. What is the third angle (in degrees)?
  13. 13.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  14. 14.An angle measures 60°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  15. 15.An angle measures 45°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  16. 16.Three angles together make a straight line. Two of them are 80° and 25°. What is the third angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 40°, 60° and 240°. What is the fourth angle (in degrees)?
  18. 18.An angle measures 10°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  19. 19.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 4 to 1. How many degrees does it turn?
  21. 21.Four angles meet at a point. Three of them are 100°, 30° and 30°. What is the fourth angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 1 to 5. How many degrees does it turn?
  23. 23.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
  24. 24.The minute hand of a clock turns clockwise from 1 to 2. How many degrees does it turn?
  25. 25.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  26. 26.Four angles meet at a point. Three of them are 70°, 80° and 60°. What is the fourth angle (in degrees)?
  27. 27.An angle measures 175°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  28. 28.An angle measures 25°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  29. 29.The minute hand of a clock turns clockwise from 10 to 9. How many degrees does it turn?
  30. 30.Four angles meet at a point. Three of them are 90°, 50° and 50°. What is the fourth angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 50° and 80°. What is the third angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 40°, 100° and 110°. What is the fourth angle (in degrees)?
  33. 33.You face West and turn clockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  34. 34.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 20° and 140°. What is the third angle (in degrees)?
  36. 36.An angle measures 160°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  37. 37.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  38. 38.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  39. 39.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  40. 40.Four angles meet at a point. Three of them are 40°, 50° and 220°. What is the fourth angle (in degrees)?

Answer key

  1. Acute
  2. 25
  3. West
  4. 45
  5. 120
  6. 55
  7. 180
  8. 60
  9. 90
  10. Right
  11. 120
  12. 30
  13. 120
  14. Acute
  15. Acute
  16. 75
  17. 20
  18. Acute
  19. 60
  20. 270
  21. 200
  22. 120
  23. South
  24. 30
  25. 15
  26. 150
  27. Obtuse
  28. Acute
  29. 330
  30. 170
  31. 50
  32. 110
  33. South
  34. 30
  35. 20
  36. Obtuse
  37. East
  38. West
  39. Straight
  40. 50

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