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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 420 · 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 180°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  2. 2.Three angles together make a straight line. Two of them are 50° and 20°. What is the third angle (in degrees)?
  3. 3.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  4. 4.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  5. 5.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 25° and 125°. What is the third angle (in degrees)?
  7. 7.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East
  8. 8.Four angles meet at a point. Three of them are 60°, 90° and 150°. What is the fourth angle (in degrees)?
  9. 9.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) North (c) East (d) West
  10. 10.An angle measures 135°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  11. 11.Four angles meet at a point. Three of them are 30°, 40° and 30°. What is the fourth angle (in degrees)?
  12. 12.The minute hand of a clock turns clockwise from 2 to 4. How many degrees does it turn?
  13. 13.An angle measures 140°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  14. 14.Four angles meet at a point. Three of them are 30°, 30° and 60°. What is the fourth angle (in degrees)?
  15. 15.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 35° and 70°. What is the third angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 100°, 90° and 140°. What is the fourth angle (in degrees)?
  18. 18.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) South (d) West
  19. 19.Four angles meet at a point. Three of them are 50°, 70° and 140°. What is the fourth angle (in degrees)?
  20. 20.Four angles meet at a point. Three of them are 100°, 30° and 160°. What is the fourth angle (in degrees)?
  21. 21.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
  23. 23.Four angles meet at a point. Three of them are 80°, 50° and 70°. What is the fourth angle (in degrees)?
  24. 24.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  25. 25.An angle measures 105°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  26. 26.Three angles together make a straight line. Two of them are 20° and 150°. What is the third angle (in degrees)?
  27. 27.An angle measures 15°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  28. 28.Four angles meet at a point. Three of them are 80°, 90° and 130°. What is the fourth angle (in degrees)?
  29. 29.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  30. 30.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  31. 31.The minute hand of a clock turns clockwise from 6 to 3. How many degrees does it turn?
  32. 32.Four angles meet at a point. Three of them are 70°, 40° and 220°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
  34. 34.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 20° and 110°. What is the third angle (in degrees)?
  36. 36.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) North (d) East
  37. 37.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?
  38. 38.Four angles meet at a point. Three of them are 100°, 90° and 30°. What is the fourth angle (in degrees)?
  39. 39.You face East and turn clockwise through 90°. Which direction do you face now? (a) North (b) South (c) East (d) West
  40. 40.Three angles together make a straight line. Two of them are 25° and 140°. What is the third angle (in degrees)?

Answer key

  1. Straight
  2. 110
  3. East
  4. Right
  5. 120
  6. 30
  7. South
  8. 60
  9. North
  10. Obtuse
  11. 260
  12. 60
  13. Obtuse
  14. 240
  15. 60
  16. 75
  17. 30
  18. East
  19. 100
  20. 70
  21. 90
  22. 330
  23. 160
  24. 20
  25. Obtuse
  26. 10
  27. Acute
  28. 60
  29. Obtuse
  30. 36
  31. 270
  32. 30
  33. 240
  34. 60
  35. 50
  36. South
  37. 330
  38. 140
  39. South
  40. 15

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