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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 81 · 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.

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  1. 1.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  2. 2.Four angles meet at a point. Three of them are 40°, 70° and 30°. What is the fourth angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 40°, 30° and 100°. What is the fourth angle (in degrees)?
  4. 4.You face North and turn clockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  5. 5.You face West and turn clockwise through 180°. Which direction do you face now? (a) West (b) North (c) South (d) East
  6. 6.An angle measures 25°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  7. 7.You face North and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East
  8. 8.An angle measures 45°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  9. 9.Four angles meet at a point. Three of them are 100°, 90° and 150°. What is the fourth angle (in degrees)?
  10. 10.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  11. 11.The minute hand of a clock turns clockwise from 1 to 4. How many degrees does it turn?
  12. 12.Three angles together make a straight line. Two of them are 40° and 35°. What is the third angle (in degrees)?
  13. 13.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 80° and 80°. What is the third angle (in degrees)?
  15. 15.You face North and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
  16. 16.Four angles meet at a point. Three of them are 50°, 50° and 60°. What is the fourth angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 60° and 25°. What is the third angle (in degrees)?
  18. 18.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  19. 19.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  20. 20.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
  21. 21.Three angles together make a straight line. Two of them are 100° and 35°. What is the third angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 55° and 115°. What is the third angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 8 to 11. How many degrees does it turn?
  24. 24.Three angles together make a straight line. Two of them are 55° and 35°. What is the third angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 50°, 40° and 250°. What is the fourth angle (in degrees)?
  26. 26.An angle measures 245°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  27. 27.An angle measures 105°. 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 60° and 40°. What is the third angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 10° and 20°. What is the third angle (in degrees)?
  30. 30.Three angles together make a straight line. Two of them are 80° and 30°. What is the third angle (in degrees)?
  31. 31.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  32. 32.The minute hand of a clock turns clockwise from 3 to 6. How many degrees does it turn?
  33. 33.An angle measures 10°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  34. 34.Three angles together make a straight line. Two of them are 15° and 120°. What is the third angle (in degrees)?
  35. 35.An angle measures 175°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
  36. 36.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) North (c) East (d) West
  37. 37.The minute hand of a clock turns clockwise from 7 to 8. How many degrees does it turn?
  38. 38.Three angles together make a straight line. Two of them are 20° and 40°. What is the third angle (in degrees)?
  39. 39.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  40. 40.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East

Answer key

  1. Right
  2. 220
  3. 190
  4. West
  5. East
  6. Acute
  7. East
  8. Acute
  9. 20
  10. 36
  11. 90
  12. 105
  13. 90
  14. 20
  15. East
  16. 200
  17. 95
  18. 60
  19. South
  20. 90
  21. 45
  22. 10
  23. 90
  24. 90
  25. 20
  26. Reflex
  27. Obtuse
  28. 80
  29. 150
  30. 70
  31. 60
  32. 90
  33. Acute
  34. 45
  35. Obtuse
  36. West
  37. 30
  38. 120
  39. Straight
  40. East

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