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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 70 · 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.

NameDateTime takenScore ___ / 40
  1. 1.An angle measures 345°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  2. 2.Three angles together make a straight line. Two of them are 20° and 75°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 10° and 25°. What is the third angle (in degrees)?
  4. 4.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  5. 5.The minute hand of a clock turns clockwise from 3 to 8. How many degrees does it turn?
  6. 6.An angle measures 255°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  7. 7.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  8. 8.Four angles meet at a point. Three of them are 60°, 90° and 130°. What is the fourth angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 100°, 70° and 50°. What is the fourth angle (in degrees)?
  10. 10.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  11. 11.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 85° and 80°. What is the third angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 7 to 9. How many degrees does it turn?
  14. 14.The minute hand of a clock turns clockwise from 3 to 10. How many degrees does it turn?
  15. 15.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  16. 16.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  17. 17.An angle measures 140°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  18. 18.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  19. 19.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  20. 20.Four angles meet at a point. Three of them are 50°, 80° and 90°. What is the fourth angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 90°, 60° and 90°. What is the fourth angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 50°, 30° and 30°. What is the fourth angle (in degrees)?
  23. 23.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  24. 24.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  25. 25.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  26. 26.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) South (c) East (d) West
  27. 27.The minute hand of a clock turns clockwise from 5 to 12. How many degrees does it turn?
  28. 28.Four angles meet at a point. Three of them are 70°, 80° and 30°. What is the fourth angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 2 to 12. How many degrees does it turn?
  30. 30.Four angles meet at a point. Three of them are 60°, 80° and 150°. What is the fourth angle (in degrees)?
  31. 31.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  32. 32.Three angles together make a straight line. Two of them are 100° and 50°. What is the third angle (in degrees)?
  33. 33.Four angles meet at a point. Three of them are 30°, 30° and 100°. What is the fourth angle (in degrees)?
  34. 34.An angle measures 310°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  35. 35.Three angles together make a straight line. Two of them are 55° and 90°. What is the third angle (in degrees)?
  36. 36.Four angles meet at a point. Three of them are 90°, 70° and 160°. What is the fourth angle (in degrees)?
  37. 37.An angle measures 180°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  38. 38.An angle measures 115°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
  39. 39.An angle measures 85°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  40. 40.You face North and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) South (d) East

Answer key

  1. Reflex
  2. 85
  3. 145
  4. 90
  5. 150
  6. Reflex
  7. 300
  8. 80
  9. 140
  10. Obtuse
  11. 15
  12. 15
  13. 60
  14. 210
  15. 60
  16. Right
  17. Obtuse
  18. 120
  19. South
  20. 140
  21. 120
  22. 250
  23. East
  24. 60
  25. 30
  26. South
  27. 210
  28. 180
  29. 300
  30. 70
  31. North
  32. 30
  33. 200
  34. Reflex
  35. 35
  36. 40
  37. Straight
  38. Obtuse
  39. Acute
  40. East

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