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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 510 · 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.

NameDateTime takenScore ___ / 40
  1. 1.Three angles together make a straight line. Two of them are 55° and 15°. What is the third angle (in degrees)?
  2. 2.Four angles meet at a point. Three of them are 40°, 60° and 90°. What is the fourth angle (in degrees)?
  3. 3.An angle measures 20°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  4. 4.Three angles together make a straight line. Two of them are 25° and 105°. What is the third angle (in degrees)?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  6. 6.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  7. 7.Three angles together make a straight line. Two of them are 20° and 145°. What is the third angle (in degrees)?
  8. 8.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) West (c) East (d) North
  9. 9.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  10. 10.An angle measures 5°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  11. 11.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  12. 12.Four angles meet at a point. Three of them are 90°, 90° and 90°. What is the fourth angle (in degrees)?
  13. 13.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  14. 14.You face West and turn clockwise through 90°. Which direction do you face now? (a) West (b) East (c) South (d) North
  15. 15.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  16. 16.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  17. 17.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  18. 18.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 65° and 10°. What is the third angle (in degrees)?
  20. 20.An angle measures 340°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  21. 21.Three angles together make a straight line. Two of them are 40° and 55°. What is the third angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 50° and 45°. What is the third angle (in degrees)?
  23. 23.An angle measures 95°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  24. 24.Four angles meet at a point. Three of them are 90°, 50° and 180°. What is the fourth angle (in degrees)?
  25. 25.The minute hand of a clock turns clockwise from 2 to 1. How many degrees does it turn?
  26. 26.Three angles together make a straight line. Two of them are 35° and 30°. What is the third angle (in degrees)?
  27. 27.Three angles together make a straight line. Two of them are 75° and 35°. What is the third angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 50° and 100°. What is the third angle (in degrees)?
  29. 29.An angle measures 170°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  30. 30.Four angles meet at a point. Three of them are 70°, 50° and 90°. What is the fourth angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 40°, 100° and 80°. What is the fourth angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 55° and 115°. What is the third angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
  34. 34.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  35. 35.An angle measures 310°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
  36. 36.Four angles meet at a point. Three of them are 60°, 100° and 160°. What is the fourth angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 70° and 85°. What is the third angle (in degrees)?
  38. 38.Four angles meet at a point. Three of them are 90°, 30° and 210°. What is the fourth angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 10 to 4. How many degrees does it turn?
  40. 40.Three angles together make a straight line. Two of them are 100° and 45°. What is the third angle (in degrees)?

Answer key

  1. 110
  2. 170
  3. Acute
  4. 50
  5. Right
  6. 85
  7. 15
  8. South
  9. 36
  10. Acute
  11. 60
  12. 90
  13. East
  14. North
  15. Acute
  16. 45
  17. 120
  18. 60
  19. 105
  20. Reflex
  21. 85
  22. 85
  23. Obtuse
  24. 40
  25. 330
  26. 115
  27. 70
  28. 30
  29. Obtuse
  30. 150
  31. 140
  32. 10
  33. 240
  34. Obtuse
  35. Reflex
  36. 40
  37. 25
  38. 30
  39. 180
  40. 35

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