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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 675 · 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 80°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  2. 2.Three angles together make a straight line. Two of them are 70° and 15°. What is the third angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 90°, 50° and 90°. What is the fourth angle (in degrees)?
  4. 4.An angle measures 55°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  5. 5.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  6. 6.An angle measures 190°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  7. 7.Three angles together make a straight line. Two of them are 50° and 40°. What is the third angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 25° and 60°. What is the third angle (in degrees)?
  9. 9.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
  10. 10.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South
  11. 11.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) North (c) East (d) West
  12. 12.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  13. 13.Four angles meet at a point. Three of them are 100°, 100° and 90°. What is the fourth angle (in degrees)?
  14. 14.You face South and turn clockwise through 180°. Which direction do you face now? (a) North (b) West (c) South (d) East
  15. 15.Three angles together make a straight line. Two of them are 35° and 90°. What is the third angle (in degrees)?
  16. 16.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  17. 17.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  18. 18.The minute hand of a clock turns clockwise from 1 to 6. How many degrees does it turn?
  19. 19.Four angles meet at a point. Three of them are 60°, 30° and 90°. What is the fourth angle (in degrees)?
  20. 20.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  21. 21.You face West and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) North (d) South
  22. 22.Three angles together make a straight line. Two of them are 70° and 30°. What is the third angle (in degrees)?
  23. 23.Four angles meet at a point. Three of them are 50°, 90° and 40°. What is the fourth angle (in degrees)?
  24. 24.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 80° and 50°. What is the third angle (in degrees)?
  26. 26.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 80°, 50° and 100°. What is the fourth angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 50°, 70° and 190°. What is the fourth angle (in degrees)?
  29. 29.An angle measures 100°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  30. 30.The minute hand of a clock turns clockwise from 9 to 7. How many degrees does it turn?
  31. 31.Four angles meet at a point. Three of them are 50°, 70° and 160°. What is the fourth angle (in degrees)?
  32. 32.The minute hand of a clock turns clockwise from 12 to 4. How many degrees does it turn?
  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.The minute hand of a clock turns clockwise from 3 to 12. How many degrees does it turn?
  35. 35.Four angles meet at a point. Three of them are 90°, 40° and 150°. What is the fourth angle (in degrees)?
  36. 36.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  37. 37.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) North (d) West
  38. 38.Four angles meet at a point. Three of them are 80°, 60° and 110°. What is the fourth angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 12 to 8. How many degrees does it turn?
  40. 40.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight

Answer key

  1. Acute
  2. 95
  3. 130
  4. Acute
  5. 60
  6. Reflex
  7. 90
  8. 95
  9. 30
  10. West
  11. East
  12. Right
  13. 70
  14. North
  15. 55
  16. 90
  17. 72
  18. 150
  19. 180
  20. 18
  21. South
  22. 80
  23. 180
  24. 30
  25. 50
  26. 45
  27. 130
  28. 50
  29. Obtuse
  30. 300
  31. 80
  32. 120
  33. 35
  34. 270
  35. 80
  36. 60
  37. East
  38. 110
  39. 240
  40. Straight

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