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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 692 · 40 sums
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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 70°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  2. 2.Three angles together make a straight line. Two of them are 95° and 45°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 55° and 30°. What is the third angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 85° and 55°. What is the third angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 85° and 35°. What is the third angle (in degrees)?
  7. 7.The minute hand of a clock turns clockwise from 2 to 3. How many degrees does it turn?
  8. 8.Three angles together make a straight line. Two of them are 20° and 15°. What is the third angle (in degrees)?
  9. 9.You face West and turn clockwise through 180°. Which direction do you face now? (a) South (b) East (c) North (d) West
  10. 10.Four angles meet at a point. Three of them are 40°, 90° and 130°. What is the fourth angle (in degrees)?
  11. 11.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 95° and 70°. What is the third angle (in degrees)?
  13. 13.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  14. 14.The minute hand of a clock turns clockwise from 10 to 12. How many degrees does it turn?
  15. 15.Four angles meet at a point. Three of them are 100°, 50° and 200°. What is the fourth angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 25° and 95°. What is the third angle (in degrees)?
  17. 17.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  18. 18.The minute hand of a clock turns clockwise from 4 to 8. How many degrees does it turn?
  19. 19.Four angles meet at a point. Three of them are 80°, 40° and 70°. What is the fourth angle (in degrees)?
  20. 20.Four angles meet at a point. Three of them are 60°, 50° and 80°. What is the fourth angle (in degrees)?
  21. 21.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 95° and 30°. What is the third angle (in degrees)?
  23. 23.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 4 to 9. How many degrees does it turn?
  25. 25.Three angles together make a straight line. Two of them are 80° and 30°. What is the third angle (in degrees)?
  26. 26.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  27. 27.An angle measures 150°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  28. 28.You face North and turn clockwise through 180°. Which direction do you face now? (a) South (b) West (c) North (d) East
  29. 29.An angle measures 350°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  30. 30.Three angles together make a straight line. Two of them are 70° and 70°. What is the third angle (in degrees)?
  31. 31.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) North (c) West (d) East
  32. 32.Four angles meet at a point. Three of them are 30°, 90° and 160°. What is the fourth angle (in degrees)?
  33. 33.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  34. 34.An angle measures 165°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  35. 35.The minute hand of a clock turns clockwise from 7 to 11. How many degrees does it turn?
  36. 36.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 55° and 100°. What is the third angle (in degrees)?
  38. 38.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) East (d) South
  39. 39.The minute hand of a clock turns clockwise from 11 to 5. How many degrees does it turn?
  40. 40.Four angles meet at a point. Three of them are 40°, 60° and 100°. What is the fourth angle (in degrees)?

Answer key

  1. Acute
  2. 40
  3. 85
  4. 95
  5. 40
  6. 60
  7. 30
  8. 145
  9. East
  10. 100
  11. 36
  12. 15
  13. 60
  14. 60
  15. 10
  16. 60
  17. Straight
  18. 120
  19. 170
  20. 170
  21. 20
  22. 55
  23. 72
  24. 150
  25. 70
  26. 60
  27. Obtuse
  28. South
  29. Reflex
  30. 40
  31. East
  32. 80
  33. 30
  34. Obtuse
  35. 120
  36. 45
  37. 25
  38. East
  39. 180
  40. 160

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