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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 187 · 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.

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  1. 1.Four angles meet at a point. Three of them are 100°, 80° and 90°. What is the fourth angle (in degrees)?
  2. 2.You face South and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) North (d) East
  3. 3.The minute hand of a clock turns clockwise from 12 to 2. How many degrees does it turn?
  4. 4.Three angles together make a straight line. Two of them are 30° and 30°. What is the third angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 100° and 15°. What is the third angle (in degrees)?
  6. 6.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  7. 7.You face East and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  8. 8.You face West and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
  9. 9.Four angles meet at a point. Three of them are 90°, 40° and 110°. What is the fourth angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 55° and 45°. What is the third angle (in degrees)?
  11. 11.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  12. 12.Three angles together make a straight line. Two of them are 65° and 25°. What is the third angle (in degrees)?
  13. 13.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  14. 14.An angle measures 120°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  15. 15.Three angles together make a straight line. Two of them are 45° and 25°. What is the third angle (in degrees)?
  16. 16.An angle measures 165°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  17. 17.Four angles meet at a point. Three of them are 50°, 80° and 130°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 20° and 135°. What is the third angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 10 to 12. How many degrees does it turn?
  21. 21.An angle measures 40°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  22. 22.The minute hand of a clock turns clockwise from 7 to 9. How many degrees does it turn?
  23. 23.Three angles together make a straight line. Two of them are 40° and 85°. What is the third angle (in degrees)?
  24. 24.Three angles together make a straight line. Two of them are 45° and 110°. What is the third angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 80°, 80° and 160°. What is the fourth angle (in degrees)?
  26. 26.Four angles meet at a point. Three of them are 90°, 60° and 30°. What is the fourth angle (in degrees)?
  27. 27.An angle measures 355°. What kind of angle is it? (a) Obtuse (b) Right (c) Reflex
  28. 28.Three angles together make a straight line. Two of them are 90° and 75°. What is the third angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 100°, 90° and 90°. What is the fourth angle (in degrees)?
  30. 30.An angle measures 265°. What kind of angle is it? (a) Obtuse (b) Straight (c) Reflex
  31. 31.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 30°, 90° and 230°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 6 to 8. How many degrees does it turn?
  34. 34.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  35. 35.You face North and turn clockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  36. 36.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 30°, 70° and 120°. What is the fourth angle (in degrees)?
  38. 38.Four angles meet at a point. Three of them are 30°, 50° and 80°. What is the fourth angle (in degrees)?
  39. 39.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 2 to 12. How many degrees does it turn?

Answer key

  1. 90
  2. West
  3. 60
  4. 120
  5. 65
  6. 180
  7. South
  8. North
  9. 120
  10. 80
  11. Straight
  12. 90
  13. 36
  14. Obtuse
  15. 110
  16. Obtuse
  17. 100
  18. 25
  19. 80
  20. 60
  21. Acute
  22. 60
  23. 55
  24. 25
  25. 40
  26. 180
  27. Reflex
  28. 15
  29. 80
  30. Reflex
  31. 36
  32. 10
  33. 60
  34. 90
  35. West
  36. 30
  37. 140
  38. 200
  39. 45
  40. 300

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