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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 926 · 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 15° and 25°. What is the third angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 35° and 130°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 45° and 75°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 65° and 50°. What is the third angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 25° and 65°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 70°, 50° and 40°. What is the fourth angle (in degrees)?
  7. 7.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  8. 8.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  9. 9.The minute hand of a clock turns clockwise from 5 to 10. How many degrees does it turn?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  11. 11.Three angles together make a straight line. Two of them are 95° and 60°. What is the third angle (in degrees)?
  12. 12.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  13. 13.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) East (c) North (d) West
  14. 14.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 40° and 90°. What is the third angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 35° and 50°. What is the third angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 85° and 85°. What is the third angle (in degrees)?
  18. 18.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  20. 20.Three angles together make a straight line. Two of them are 80° and 70°. What is the third angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 50°, 70° and 60°. What is the fourth angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 50°, 90° and 70°. What is the fourth angle (in degrees)?
  23. 23.An angle measures 170°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  24. 24.Three angles together make a straight line. Two of them are 25° and 105°. What is the third angle (in degrees)?
  25. 25.You face North and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  26. 26.The minute hand of a clock turns clockwise from 6 to 11. How many degrees does it turn?
  27. 27.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 40°, 60° and 130°. What is the fourth angle (in degrees)?
  29. 29.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  30. 30.An angle measures 125°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  31. 31.An angle measures 30°. What kind of angle is it? (a) Reflex (b) Straight (c) Acute
  32. 32.Four angles meet at a point. Three of them are 30°, 100° and 150°. What is the fourth angle (in degrees)?
  33. 33.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) East (d) North
  34. 34.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  35. 35.An angle measures 135°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  36. 36.An angle measures 5°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  37. 37.The minute hand of a clock turns clockwise from 1 to 4. How many degrees does it turn?
  38. 38.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  39. 39.Three angles together make a straight line. Two of them are 10° and 75°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 25° and 135°. What is the third angle (in degrees)?

Answer key

  1. 140
  2. 15
  3. 60
  4. 65
  5. 90
  6. 200
  7. West
  8. Obtuse
  9. 150
  10. Right
  11. 25
  12. 18
  13. North
  14. 60
  15. 50
  16. 95
  17. 10
  18. 40
  19. 180
  20. 30
  21. 180
  22. 150
  23. Obtuse
  24. 50
  25. East
  26. 150
  27. 90
  28. 130
  29. 45
  30. Obtuse
  31. Acute
  32. 80
  33. South
  34. 60
  35. Obtuse
  36. Acute
  37. 90
  38. East
  39. 95
  40. 20

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