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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 822 · 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 50°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  2. 2.Four angles meet at a point. Three of them are 70°, 100° and 170°. What is the fourth angle (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  4. 4.You face North and turn clockwise through 270°. Which direction do you face now? (a) North (b) West (c) East (d) South
  5. 5.Three angles together make a straight line. Two of them are 10° and 95°. What is the third angle (in degrees)?
  6. 6.An angle measures 135°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  7. 7.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 85° and 10°. What is the third angle (in degrees)?
  9. 9.An angle measures 350°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  10. 10.An angle measures 30°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  11. 11.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  12. 12.An angle measures 210°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  13. 13.Three angles together make a straight line. Two of them are 90° and 40°. What is the third angle (in degrees)?
  14. 14.Four angles meet at a point. Three of them are 40°, 40° and 200°. What is the fourth angle (in degrees)?
  15. 15.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  16. 16.An angle measures 150°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  17. 17.Four angles meet at a point. Three of them are 80°, 60° and 180°. What is the fourth angle (in degrees)?
  18. 18.You face East and turn clockwise through 180°. Which direction do you face now? (a) South (b) West (c) East (d) North
  19. 19.Three angles together make a straight line. Two of them are 50° and 30°. What is the third angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 9 to 8. How many degrees does it turn?
  21. 21.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 80°, 100° and 150°. What is the fourth angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 65° and 35°. What is the third angle (in degrees)?
  24. 24.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  25. 25.The minute hand of a clock turns clockwise from 9 to 3. How many degrees does it turn?
  26. 26.Three angles together make a straight line. Two of them are 55° and 35°. What is the third angle (in degrees)?
  27. 27.The minute hand of a clock turns clockwise from 12 to 2. How many degrees does it turn?
  28. 28.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  29. 29.Four angles meet at a point. Three of them are 50°, 50° and 140°. What is the fourth angle (in degrees)?
  30. 30.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 40°, 30° and 260°. What is the fourth angle (in degrees)?
  32. 32.An angle measures 275°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  33. 33.Three angles together make a straight line. Two of them are 70° and 50°. What is the third angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 60°, 70° and 190°. What is the fourth angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 90°, 40° and 100°. What is the fourth angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 95° and 50°. What is the third angle (in degrees)?
  37. 37.The minute hand of a clock turns clockwise from 2 to 10. How many degrees does it turn?
  38. 38.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 40°, 40° and 250°. What is the fourth angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 1 to 5. How many degrees does it turn?

Answer key

  1. Acute
  2. 20
  3. Straight
  4. West
  5. 75
  6. Obtuse
  7. 45
  8. 85
  9. Reflex
  10. Acute
  11. 90
  12. Reflex
  13. 50
  14. 80
  15. 270
  16. Obtuse
  17. 40
  18. West
  19. 100
  20. 330
  21. 30
  22. 30
  23. 80
  24. 120
  25. 180
  26. 90
  27. 60
  28. North
  29. 120
  30. 72
  31. 30
  32. Reflex
  33. 60
  34. 40
  35. 130
  36. 35
  37. 240
  38. 60
  39. 30
  40. 120

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