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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 428 · 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 100°, 40° and 210°. What is the fourth angle (in degrees)?
  2. 2.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) East (d) South
  3. 3.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  4. 4.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  5. 5.An angle measures 30°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  6. 6.The minute hand of a clock turns clockwise from 3 to 7. How many degrees does it turn?
  7. 7.An angle measures 210°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  8. 8.Three angles together make a straight line. Two of them are 75° and 40°. What is the third angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 65° and 20°. What is the third angle (in degrees)?
  10. 10.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 70°, 90° and 160°. What is the fourth angle (in degrees)?
  12. 12.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  13. 13.Three angles together make a straight line. Two of them are 40° and 115°. What is the third angle (in degrees)?
  14. 14.The minute hand of a clock turns clockwise from 10 to 9. How many degrees does it turn?
  15. 15.Three angles together make a straight line. Two of them are 80° and 45°. What is the third angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 9 to 7. How many degrees does it turn?
  17. 17.An angle measures 10°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  18. 18.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  19. 19.Three angles together make a straight line. Two of them are 40° and 110°. What is the third angle (in degrees)?
  20. 20.An angle measures 85°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  21. 21.An angle measures 150°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  22. 22.Four angles meet at a point. Three of them are 80°, 60° and 70°. What is the fourth angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 70° and 55°. What is the third angle (in degrees)?
  25. 25.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
  26. 26.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  27. 27.The minute hand of a clock turns clockwise from 6 to 4. How many degrees does it turn?
  28. 28.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  29. 29.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  30. 30.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 80°, 40° and 140°. What is the fourth angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 40°, 70° and 40°. What is the fourth angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 25° and 110°. What is the third angle (in degrees)?
  34. 34.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  35. 35.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) North (d) West
  36. 36.An angle measures 20°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  37. 37.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) South (c) East (d) West
  38. 38.Three angles together make a straight line. Two of them are 15° and 140°. What is the third angle (in degrees)?
  39. 39.An angle measures 340°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  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. 10
  2. South
  3. 20
  4. 36
  5. Acute
  6. 120
  7. Reflex
  8. 65
  9. 95
  10. 90
  11. 40
  12. 90
  13. 25
  14. 330
  15. 55
  16. 300
  17. Acute
  18. West
  19. 30
  20. Acute
  21. Obtuse
  22. 150
  23. 85
  24. 55
  25. Right
  26. 90
  27. 300
  28. East
  29. Acute
  30. 80
  31. 100
  32. 210
  33. 45
  34. 60
  35. South
  36. Acute
  37. West
  38. 25
  39. Reflex
  40. 35

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