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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 503 · 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.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  2. 2.Four angles meet at a point. Three of them are 100°, 90° and 160°. What is the fourth angle (in degrees)?
  3. 3.The minute hand of a clock turns clockwise from 6 to 4. How many degrees does it turn?
  4. 4.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  5. 5.Four angles meet at a point. Three of them are 90°, 90° and 150°. What is the fourth angle (in degrees)?
  6. 6.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  7. 7.Three angles together make a straight line. Two of them are 45° and 115°. What is the third angle (in degrees)?
  8. 8.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  9. 9.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  10. 10.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  11. 11.Three angles together make a straight line. Two of them are 35° and 30°. What is the third angle (in degrees)?
  12. 12.An angle measures 125°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  13. 13.An angle measures 295°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  14. 14.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  15. 15.Four angles meet at a point. Three of them are 60°, 100° and 160°. What is the fourth angle (in degrees)?
  16. 16.An angle measures 45°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  17. 17.Four angles meet at a point. Three of them are 70°, 30° and 120°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 50° and 55°. What is the third angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 80° and 35°. What is the third angle (in degrees)?
  20. 20.An angle measures 185°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  21. 21.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  22. 22.An angle measures 210°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  23. 23.Four angles meet at a point. Three of them are 80°, 70° and 160°. What is the fourth angle (in degrees)?
  24. 24.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) South (c) East (d) West
  25. 25.An angle measures 235°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  26. 26.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  27. 27.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  28. 28.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) North (c) West (d) East
  29. 29.Three angles together make a straight line. Two of them are 10° and 145°. What is the third angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 10 to 11. How many degrees does it turn?
  31. 31.Three angles together make a straight line. Two of them are 50° and 45°. What is the third angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 85° and 50°. What is the third angle (in degrees)?
  33. 33.An angle measures 300°. What kind of angle is it? (a) Acute (b) Obtuse (c) Reflex
  34. 34.Three angles together make a straight line. Two of them are 80° and 85°. What is the third angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 8 to 12. How many degrees does it turn?
  36. 36.Three angles together make a straight line. Two of them are 45° and 60°. What is the third angle (in degrees)?
  37. 37.The minute hand of a clock turns clockwise from 6 to 8. How many degrees does it turn?
  38. 38.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  39. 39.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 40°, 40° and 170°. What is the fourth angle (in degrees)?

Answer key

  1. 90
  2. 10
  3. 300
  4. Right
  5. 30
  6. 15
  7. 20
  8. 120
  9. 36
  10. Straight
  11. 115
  12. Obtuse
  13. Reflex
  14. South
  15. 40
  16. Acute
  17. 140
  18. 75
  19. 65
  20. Reflex
  21. 18
  22. Reflex
  23. 50
  24. West
  25. Reflex
  26. 60
  27. 30
  28. West
  29. 25
  30. 30
  31. 85
  32. 45
  33. Reflex
  34. 15
  35. 120
  36. 75
  37. 60
  38. 40
  39. 20
  40. 110

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