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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 19 · 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.Four angles meet at a point. Three of them are 30°, 50° and 140°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 35° and 120°. What is the third angle (in degrees)?
  3. 3.You face North and turn clockwise through 180°. Which direction do you face now? (a) South (b) East (c) West (d) North
  4. 4.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
  5. 5.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) North (c) South (d) West
  6. 6.Four angles meet at a point. Three of them are 70°, 100° and 110°. What is the fourth angle (in degrees)?
  7. 7.An angle measures 125°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  8. 8.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  9. 9.Three angles together make a straight line. Two of them are 65° and 80°. 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.Four angles meet at a point. Three of them are 80°, 70° and 90°. What is the fourth angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 80°, 50° and 100°. What is the fourth angle (in degrees)?
  13. 13.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) East (c) West (d) North
  14. 14.The minute hand of a clock turns clockwise from 3 to 7. How many degrees does it turn?
  15. 15.An angle measures 5°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  16. 16.An angle measures 25°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  17. 17.An angle measures 50°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  18. 18.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  19. 19.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  20. 20.The minute hand of a clock turns clockwise from 3 to 10. How many degrees does it turn?
  21. 21.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  22. 22.You face West and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  23. 23.Four angles meet at a point. Three of them are 80°, 40° and 50°. What is the fourth angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 75° and 40°. What is the third angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 70°, 80° and 110°. What is the fourth angle (in degrees)?
  26. 26.Four angles meet at a point. Three of them are 30°, 80° and 100°. What is the fourth angle (in degrees)?
  27. 27.An angle measures 15°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  28. 28.The minute hand of a clock turns clockwise from 5 to 11. How many degrees does it turn?
  29. 29.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  30. 30.An angle measures 55°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  31. 31.Three angles together make a straight line. Two of them are 85° and 45°. What is the third angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 50°, 40° and 180°. What is the fourth angle (in degrees)?
  33. 33.You face North and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
  34. 34.Three angles together make a straight line. Two of them are 15° and 140°. What is the third angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 80°, 40° and 90°. What is the fourth angle (in degrees)?
  36. 36.An angle measures 110°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  37. 37.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  38. 38.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
  39. 39.Three angles together make a straight line. Two of them are 15° and 120°. What is the third angle (in degrees)?
  40. 40.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?

Answer key

  1. 140
  2. 25
  3. South
  4. 90
  5. South
  6. 80
  7. Obtuse
  8. Right
  9. 35
  10. 45
  11. 120
  12. 130
  13. West
  14. 120
  15. Acute
  16. Acute
  17. Acute
  18. 36
  19. Straight
  20. 210
  21. 72
  22. North
  23. 190
  24. 65
  25. 100
  26. 150
  27. Acute
  28. 180
  29. 90
  30. Acute
  31. 50
  32. 90
  33. West
  34. 25
  35. 150
  36. Obtuse
  37. 30
  38. 30
  39. 45
  40. 20

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