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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 230 · 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.An angle measures 120°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  2. 2.Four angles meet at a point. Three of them are 80°, 70° and 180°. What is the fourth angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 90° and 35°. What is the third angle (in degrees)?
  4. 4.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) North (c) East (d) West
  5. 5.Four angles meet at a point. Three of them are 70°, 40° and 60°. What is the fourth angle (in degrees)?
  6. 6.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  7. 7.An angle measures 290°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  8. 8.Four angles meet at a point. Three of them are 60°, 100° and 180°. What is the fourth angle (in degrees)?
  9. 9.Four angles meet at a point. Three of them are 40°, 90° and 190°. What is the fourth angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 50° and 70°. What is the third angle (in degrees)?
  11. 11.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  12. 12.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  13. 13.Three angles together make a straight line. Two of them are 85° and 20°. What is the third angle (in degrees)?
  14. 14.An angle measures 75°. What kind of angle is it? (a) Reflex (b) Acute (c) Right
  15. 15.The minute hand of a clock turns clockwise from 8 to 7. How many degrees does it turn?
  16. 16.An angle measures 10°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  17. 17.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 100° and 65°. What is the third angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 6 to 2. How many degrees does it turn?
  20. 20.An angle measures 145°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  21. 21.Four angles meet at a point. Three of them are 40°, 80° and 150°. What is the fourth angle (in degrees)?
  22. 22.The minute hand of a clock turns clockwise from 11 to 7. How many degrees does it turn?
  23. 23.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  24. 24.Four angles meet at a point. Three of them are 30°, 60° and 100°. What is the fourth angle (in degrees)?
  25. 25.An angle measures 30°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  26. 26.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  27. 27.You face North and turn clockwise through 90°. Which direction do you face now? (a) West (b) East (c) North (d) South
  28. 28.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 55° and 50°. What is the third angle (in degrees)?
  30. 30.Three angles together make a straight line. Two of them are 20° and 65°. What is the third angle (in degrees)?
  31. 31.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 55° and 85°. What is the third angle (in degrees)?
  33. 33.Three angles together make a straight line. Two of them are 60° and 105°. What is the third angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 5 to 6. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 30° and 55°. What is the third angle (in degrees)?
  36. 36.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
  37. 37.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) South (c) North (d) East
  38. 38.Three angles together make a straight line. Two of them are 100° and 15°. What is the third angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 2 to 3. How many degrees does it turn?
  40. 40.Three angles together make a straight line. Two of them are 15° and 45°. What is the third angle (in degrees)?

Answer key

  1. Obtuse
  2. 30
  3. 55
  4. West
  5. 190
  6. South
  7. Reflex
  8. 20
  9. 40
  10. 60
  11. 120
  12. Obtuse
  13. 75
  14. Acute
  15. 330
  16. Acute
  17. 40
  18. 15
  19. 240
  20. Obtuse
  21. 90
  22. 240
  23. Right
  24. 170
  25. Acute
  26. 36
  27. East
  28. 45
  29. 75
  30. 95
  31. 72
  32. 40
  33. 15
  34. 30
  35. 95
  36. West
  37. North
  38. 65
  39. 30
  40. 120

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