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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 203 · 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 straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 100° and 30°. What is the third angle (in degrees)?
  3. 3.An angle measures 340°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  4. 4.The minute hand of a clock turns clockwise from 2 to 6. How many degrees does it turn?
  5. 5.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  6. 6.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  7. 7.An angle measures 90°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  8. 8.Three angles together make a straight line. Two of them are 75° and 25°. What is the third angle (in degrees)?
  9. 9.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 40° and 20°. What is the third angle (in degrees)?
  11. 11.Three angles together make a straight line. Two of them are 95° and 30°. What is the third angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 50°, 100° and 200°. What is the fourth angle (in degrees)?
  13. 13.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  14. 14.Three angles together make a straight line. Two of them are 85° and 45°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 20° and 55°. What is the third angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 70°, 60° and 90°. What is the fourth angle (in degrees)?
  17. 17.An angle measures 145°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  18. 18.The minute hand of a clock turns clockwise from 12 to 1. How many degrees does it turn?
  19. 19.Four angles meet at a point. Three of them are 100°, 90° and 90°. What is the fourth angle (in degrees)?
  20. 20.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  21. 21.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  22. 22.An angle measures 35°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  23. 23.You face West and turn clockwise through 90°. Which direction do you face now? (a) South (b) North (c) East (d) West
  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.Three angles together make a straight line. Two of them are 25° and 95°. What is the third angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 6 to 1. How many degrees does it turn?
  27. 27.The minute hand of a clock turns clockwise from 4 to 12. How many degrees does it turn?
  28. 28.Four angles meet at a point. Three of them are 40°, 40° and 160°. What is the fourth angle (in degrees)?
  29. 29.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  30. 30.Four angles meet at a point. Three of them are 70°, 30° and 170°. What is the fourth angle (in degrees)?
  31. 31.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  32. 32.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  33. 33.Four angles meet at a point. Three of them are 30°, 30° and 280°. What is the fourth angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 100°, 40° and 80°. What is the fourth angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 85° and 60°. What is the third angle (in degrees)?
  36. 36.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) North (c) South (d) East
  37. 37.Three angles together make a straight line. Two of them are 30° and 20°. What is the third angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 6 to 9. How many degrees does it turn?
  39. 39.Three angles together make a straight line. Two of them are 20° and 35°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 25° and 25°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 50
  3. Reflex
  4. 120
  5. 18
  6. 72
  7. Right
  8. 80
  9. 60
  10. 120
  11. 55
  12. 10
  13. East
  14. 50
  15. 105
  16. 140
  17. Obtuse
  18. 30
  19. 80
  20. 30
  21. Obtuse
  22. Acute
  23. North
  24. 75
  25. 60
  26. 210
  27. 240
  28. 120
  29. South
  30. 90
  31. 30
  32. 45
  33. 20
  34. 140
  35. 35
  36. East
  37. 130
  38. 90
  39. 125
  40. 130

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