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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 588 · 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 50° and 35°. What is the third angle (in degrees)?
  2. 2.An angle measures 5°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  3. 3.Three angles together make a straight line. Two of them are 20° and 110°. What is the third angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 70°, 30° and 240°. What is the fourth angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 40°, 50° and 40°. What is the fourth angle (in degrees)?
  6. 6.Three angles together make a straight line. Two of them are 50° and 75°. What is the third angle (in degrees)?
  7. 7.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 30° and 90°. What is the third angle (in degrees)?
  9. 9.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  10. 10.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  11. 11.Three angles together make a straight line. Two of them are 20° and 135°. What is the third angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 55° and 105°. What is the third angle (in degrees)?
  13. 13.You face South and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) North (d) West
  14. 14.Three angles together make a straight line. Two of them are 60° and 35°. What is the third angle (in degrees)?
  15. 15.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) West (c) North (d) South
  16. 16.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  17. 17.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  18. 18.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  19. 19.You face South and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East
  20. 20.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  21. 21.Three angles together make a straight line. Two of them are 25° and 140°. What is the third angle (in degrees)?
  22. 22.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  23. 23.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) North (c) East (d) West
  24. 24.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
  25. 25.Four angles meet at a point. Three of them are 30°, 60° and 100°. What is the fourth angle (in degrees)?
  26. 26.An angle measures 145°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  27. 27.The minute hand of a clock turns clockwise from 9 to 11. How many degrees does it turn?
  28. 28.Three angles together make a straight line. Two of them are 85° and 15°. What is the third angle (in degrees)?
  29. 29.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  30. 30.You face West and turn clockwise through 270°. Which direction do you face now? (a) South (b) East (c) West (d) North
  31. 31.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 70°, 30° and 60°. What is the fourth angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 50° and 45°. What is the third angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 100° and 30°. What is the third angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 30° and 45°. What is the third angle (in degrees)?
  36. 36.An angle measures 180°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  37. 37.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) West (c) East (d) North
  38. 38.Three angles together make a straight line. Two of them are 90° and 70°. What is the third angle (in degrees)?
  39. 39.You face West and turn clockwise through 180°. Which direction do you face now? (a) South (b) East (c) North (d) West
  40. 40.Four angles meet at a point. Three of them are 40°, 50° and 90°. What is the fourth angle (in degrees)?

Answer key

  1. 95
  2. Acute
  3. 50
  4. 20
  5. 230
  6. 55
  7. 15
  8. 60
  9. 20
  10. 90
  11. 25
  12. 20
  13. West
  14. 85
  15. South
  16. 120
  17. 30
  18. South
  19. North
  20. 90
  21. 15
  22. Right
  23. North
  24. 210
  25. 170
  26. Obtuse
  27. 60
  28. 80
  29. 60
  30. South
  31. 10
  32. 200
  33. 85
  34. 50
  35. 105
  36. Straight
  37. East
  38. 20
  39. East
  40. 180

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