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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 52 · 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 160°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  2. 2.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 70°, 80° and 150°. What is the fourth angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 75° and 35°. What is the third angle (in degrees)?
  5. 5.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  6. 6.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  7. 7.Three angles together make a straight line. Two of them are 55° and 110°. What is the third angle (in degrees)?
  8. 8.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 90°, 80° and 40°. What is the fourth angle (in degrees)?
  10. 10.An angle measures 125°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  11. 11.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  12. 12.An angle measures 140°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  13. 13.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) North (d) West
  14. 14.Four angles meet at a point. Three of them are 50°, 80° and 80°. What is the fourth angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 60° and 100°. What is the third angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 100° and 20°. What is the third angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 80°, 70° and 200°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 70° and 10°. What is the third angle (in degrees)?
  19. 19.Four angles meet at a point. Three of them are 80°, 50° and 220°. What is the fourth angle (in degrees)?
  20. 20.You face South and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  21. 21.An angle measures 30°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  22. 22.Three angles together make a straight line. Two of them are 95° and 70°. What is the third angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 7 to 1. How many degrees does it turn?
  24. 24.Three angles together make a straight line. Two of them are 40° and 105°. What is the third angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 40°, 30° and 280°. What is the fourth angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 1 to 6. How many degrees does it turn?
  27. 27.You face South and turn clockwise through 270°. Which direction do you face now? (a) West (b) South (c) East (d) North
  28. 28.Four angles meet at a point. Three of them are 50°, 70° and 30°. What is the fourth angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  30. 30.Four angles meet at a point. Three of them are 70°, 50° and 170°. What is the fourth angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 95° and 10°. What is the third angle (in degrees)?
  32. 32.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 8 to 1. How many degrees does it turn?
  34. 34.Three angles together make a straight line. Two of them are 100° and 35°. What is the third angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 50°, 80° and 160°. What is the fourth angle (in degrees)?
  36. 36.Four angles meet at a point. Three of them are 50°, 50° and 170°. What is the fourth angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 35° and 135°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 15° and 100°. What is the third angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 4 to 1. How many degrees does it turn?
  40. 40.Three angles together make a straight line. Two of them are 15° and 95°. What is the third angle (in degrees)?

Answer key

  1. Obtuse
  2. 45
  3. 60
  4. 70
  5. 90
  6. 36
  7. 15
  8. 18
  9. 150
  10. Obtuse
  11. Right
  12. Obtuse
  13. East
  14. 150
  15. 20
  16. 60
  17. 10
  18. 100
  19. 10
  20. North
  21. Acute
  22. 15
  23. 180
  24. 35
  25. 10
  26. 150
  27. East
  28. 210
  29. 10
  30. 70
  31. 75
  32. 72
  33. 150
  34. 45
  35. 70
  36. 90
  37. 10
  38. 65
  39. 270
  40. 70

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