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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 768 · 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.Four angles meet at a point. Three of them are 60°, 90° and 180°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 100° and 60°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 25° and 145°. What is the third angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 15° and 15°. What is the third angle (in degrees)?
  5. 5.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 100° and 15°. What is the third angle (in degrees)?
  7. 7.The minute hand of a clock turns clockwise from 3 to 6. How many degrees does it turn?
  8. 8.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  9. 9.The minute hand of a clock turns clockwise from 1 to 8. How many degrees does it turn?
  10. 10.The minute hand of a clock turns clockwise from 4 to 2. How many degrees does it turn?
  11. 11.Four angles meet at a point. Three of them are 100°, 40° and 100°. What is the fourth angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 85° and 45°. What is the third angle (in degrees)?
  13. 13.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) North (c) West (d) South
  14. 14.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 65° and 105°. What is the third angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 100°, 50° and 40°. What is the fourth angle (in degrees)?
  17. 17.An angle measures 165°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  18. 18.The minute hand of a clock turns clockwise from 6 to 12. How many degrees does it turn?
  19. 19.You face East and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  20. 20.Three angles together make a straight line. Two of them are 65° and 100°. What is the third angle (in degrees)?
  21. 21.The minute hand of a clock turns clockwise from 10 to 11. How many degrees does it turn?
  22. 22.An angle measures 85°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  23. 23.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 70°, 70° and 190°. What is the fourth angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 60°, 50° and 160°. What is the fourth angle (in degrees)?
  26. 26.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  27. 27.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 50°, 60° and 130°. What is the fourth angle (in degrees)?
  29. 29.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  30. 30.Four angles meet at a point. Three of them are 30°, 90° and 200°. What is the fourth angle (in degrees)?
  31. 31.The minute hand of a clock turns clockwise from 11 to 10. How many degrees does it turn?
  32. 32.An angle measures 125°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  33. 33.An angle measures 110°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Straight
  34. 34.Three angles together make a straight line. Two of them are 35° and 100°. What is the third angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 100°, 40° and 120°. What is the fourth angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 30° and 85°. What is the third angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 30° and 25°. What is the third angle (in degrees)?
  38. 38.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) North (d) East
  39. 39.An angle measures 30°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  40. 40.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) South (b) North (c) West (d) East

Answer key

  1. 30
  2. 20
  3. 10
  4. 150
  5. 90
  6. 65
  7. 90
  8. Straight
  9. 210
  10. 300
  11. 120
  12. 50
  13. East
  14. 60
  15. 10
  16. 170
  17. Obtuse
  18. 180
  19. South
  20. 15
  21. 30
  22. Acute
  23. 36
  24. 30
  25. 90
  26. 15
  27. 120
  28. 120
  29. South
  30. 40
  31. 330
  32. Obtuse
  33. Obtuse
  34. 45
  35. 100
  36. 65
  37. 125
  38. East
  39. Acute
  40. West

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