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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 350 · 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.Four angles meet at a point. Three of them are 80°, 100° and 100°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 80° and 45°. What is the third angle (in degrees)?
  3. 3.An angle measures 40°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  4. 4.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  5. 5.The minute hand of a clock turns clockwise from 8 to 9. How many degrees does it turn?
  6. 6.Four angles meet at a point. Three of them are 80°, 40° and 30°. What is the fourth angle (in degrees)?
  7. 7.An angle measures 35°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  8. 8.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  9. 9.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) East (d) South
  10. 10.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  11. 11.The minute hand of a clock turns clockwise from 5 to 8. How many degrees does it turn?
  12. 12.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  13. 13.Three angles together make a straight line. Two of them are 35° and 40°. What is the third angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 15° and 120°. What is the third angle (in degrees)?
  15. 15.An angle measures 120°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  16. 16.The minute hand of a clock turns clockwise from 6 to 4. How many degrees does it turn?
  17. 17.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  18. 18.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) North (c) East (d) South
  19. 19.Four angles meet at a point. Three of them are 70°, 100° and 120°. What is the fourth angle (in degrees)?
  20. 20.An angle measures 185°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  21. 21.The minute hand of a clock turns clockwise from 7 to 4. How many degrees does it turn?
  22. 22.An angle measures 15°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  23. 23.An angle measures 85°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  24. 24.Three angles together make a straight line. Two of them are 15° and 90°. What is the third angle (in degrees)?
  25. 25.An angle measures 135°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  26. 26.The minute hand of a clock turns clockwise from 7 to 11. How many degrees does it turn?
  27. 27.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 60°, 90° and 130°. What is the fourth angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 85° and 80°. What is the third angle (in degrees)?
  30. 30.Four angles meet at a point. Three of them are 30°, 80° and 160°. What is the fourth angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 65° and 50°. What is the third angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 80°, 50° and 120°. What is the fourth angle (in degrees)?
  33. 33.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 50°, 50° and 220°. What is the fourth angle (in degrees)?
  35. 35.You face North and turn clockwise through 180°. Which direction do you face now? (a) East (b) West (c) North (d) South
  36. 36.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) North (c) West (d) East
  37. 37.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) West (d) South
  38. 38.An angle measures 200°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  39. 39.Three angles together make a straight line. Two of them are 25° and 20°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 15° and 130°. What is the third angle (in degrees)?

Answer key

  1. 80
  2. 55
  3. Acute
  4. 18
  5. 30
  6. 210
  7. Acute
  8. Right
  9. South
  10. Obtuse
  11. 90
  12. 45
  13. 105
  14. 45
  15. Obtuse
  16. 300
  17. East
  18. West
  19. 70
  20. Reflex
  21. 270
  22. Acute
  23. Acute
  24. 75
  25. Obtuse
  26. 120
  27. 60
  28. 80
  29. 15
  30. 90
  31. 65
  32. 110
  33. 20
  34. 40
  35. South
  36. North
  37. North
  38. Reflex
  39. 135
  40. 35

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