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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 228 · 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 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  2. 2.Three angles together make a straight line. Two of them are 85° and 65°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 35° and 110°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 90°, 40° and 70°. What is the fourth angle (in degrees)?
  6. 6.You face East and turn clockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  7. 7.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  8. 8.The minute hand of a clock turns clockwise from 4 to 6. How many degrees does it turn?
  9. 9.The minute hand of a clock turns clockwise from 10 to 8. How many degrees does it turn?
  10. 10.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  11. 11.The minute hand of a clock turns clockwise from 3 to 10. How many degrees does it turn?
  12. 12.The minute hand of a clock turns clockwise from 9 to 1. How many degrees does it turn?
  13. 13.Four angles meet at a point. Three of them are 80°, 50° and 110°. What is the fourth angle (in degrees)?
  14. 14.An angle measures 15°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  15. 15.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  16. 16.An angle measures 345°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  17. 17.Three angles together make a straight line. Two of them are 65° and 30°. What is the third angle (in degrees)?
  18. 18.You face West and turn clockwise through 270°. Which direction do you face now? (a) East (b) South (c) North (d) West
  19. 19.Four angles meet at a point. Three of them are 100°, 50° and 120°. What is the fourth angle (in degrees)?
  20. 20.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  21. 21.An angle measures 115°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  22. 22.The minute hand of a clock turns clockwise from 5 to 12. How many degrees does it turn?
  23. 23.An angle measures 355°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  24. 24.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  25. 25.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  26. 26.Three angles together make a straight line. Two of them are 50° and 75°. What is the third angle (in degrees)?
  27. 27.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) East (c) North (d) South
  28. 28.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  29. 29.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  30. 30.The minute hand of a clock turns clockwise from 10 to 12. How many degrees does it turn?
  31. 31.Three angles together make a straight line. Two of them are 70° and 10°. What is the third angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 55° and 70°. What is the third angle (in degrees)?
  33. 33.Four angles meet at a point. Three of them are 100°, 90° and 90°. What is the fourth angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 12 to 2. How many degrees does it turn?
  35. 35.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  36. 36.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  37. 37.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?
  38. 38.An angle measures 25°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  39. 39.You face West and turn clockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  40. 40.An angle measures 75°. What kind of angle is it? (a) Acute (b) Right (c) Straight

Answer key

  1. Straight
  2. 30
  3. 35
  4. 15
  5. 160
  6. North
  7. 100
  8. 60
  9. 300
  10. 30
  11. 210
  12. 120
  13. 120
  14. Acute
  15. South
  16. Reflex
  17. 85
  18. South
  19. 90
  20. Obtuse
  21. Obtuse
  22. 210
  23. Reflex
  24. Obtuse
  25. Right
  26. 55
  27. South
  28. 36
  29. North
  30. 60
  31. 100
  32. 55
  33. 80
  34. 60
  35. East
  36. 90
  37. 330
  38. Acute
  39. East
  40. Acute

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