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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 189 · 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.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 70° and 65°. What is the third angle (in degrees)?
  3. 3.An angle measures 30°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  4. 4.Three angles together make a straight line. Two of them are 20° and 125°. What is the third angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 30°, 30° and 210°. What is the fourth angle (in degrees)?
  6. 6.An angle measures 45°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  7. 7.An angle measures 180°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  8. 8.Three angles together make a straight line. Two of them are 45° and 60°. What is the third angle (in degrees)?
  9. 9.An angle measures 90°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  10. 10.Three angles together make a straight line. Two of them are 85° and 15°. What is the third angle (in degrees)?
  11. 11.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 11 to 3. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 85° and 20°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 75° and 20°. What is the third angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 50°, 80° and 130°. What is the fourth angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 60°, 50° and 80°. What is the fourth angle (in degrees)?
  18. 18.You face North and turn clockwise through 180°. Which direction do you face now? (a) West (b) North (c) East (d) South
  19. 19.The minute hand of a clock turns clockwise from 1 to 9. How many degrees does it turn?
  20. 20.The minute hand of a clock turns clockwise from 7 to 11. How many degrees does it turn?
  21. 21.Four angles meet at a point. Three of them are 100°, 40° and 100°. What is the fourth angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 75° and 75°. What is the third angle (in degrees)?
  23. 23.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  24. 24.The minute hand of a clock turns clockwise from 8 to 10. How many degrees does it turn?
  25. 25.Three angles together make a straight line. Two of them are 55° and 115°. What is the third angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 90° and 20°. What is the third angle (in degrees)?
  27. 27.You face West and turn clockwise through 180°. Which direction do you face now? (a) East (b) North (c) South (d) West
  28. 28.The minute hand of a clock turns clockwise from 2 to 11. How many degrees does it turn?
  29. 29.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  30. 30.Four angles meet at a point. Three of them are 80°, 90° and 180°. What is the fourth angle (in degrees)?
  31. 31.You face West and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  32. 32.Three angles together make a straight line. Two of them are 70° and 20°. What is the third angle (in degrees)?
  33. 33.An angle measures 10°. What kind of angle is it? (a) Reflex (b) Right (c) Acute
  34. 34.Three angles together make a straight line. Two of them are 10° and 150°. What is the third angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 2 to 4. How many degrees does it turn?
  36. 36.Three angles together make a straight line. Two of them are 70° and 10°. What is the third angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 55° and 65°. What is the third angle (in degrees)?
  38. 38.An angle measures 125°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  39. 39.Three angles together make a straight line. Two of them are 90° and 40°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 60° and 70°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 45
  3. Acute
  4. 35
  5. 90
  6. Acute
  7. Straight
  8. 75
  9. Right
  10. 80
  11. 20
  12. 10
  13. 120
  14. 75
  15. 85
  16. 100
  17. 170
  18. South
  19. 240
  20. 120
  21. 120
  22. 30
  23. North
  24. 60
  25. 10
  26. 70
  27. East
  28. 270
  29. Obtuse
  30. 10
  31. North
  32. 90
  33. Acute
  34. 20
  35. 60
  36. 100
  37. 60
  38. Obtuse
  39. 50
  40. 50

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