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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 264 · 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 40° and 35°. What is the third angle (in degrees)?
  2. 2.An angle measures 15°. 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 75° and 10°. What is the third angle (in degrees)?
  4. 4.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 95° and 35°. What is the third angle (in degrees)?
  6. 6.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  7. 7.An angle measures 240°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  8. 8.Four angles meet at a point. Three of them are 40°, 90° and 180°. What is the fourth angle (in degrees)?
  9. 9.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  10. 10.You face East and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  11. 11.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  12. 12.An angle measures 25°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  13. 13.Four angles meet at a point. Three of them are 30°, 90° and 80°. What is the fourth angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 10° and 100°. What is the third angle (in degrees)?
  15. 15.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 100°, 100° and 60°. What is the fourth angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 80°, 50° and 40°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 60° and 75°. What is the third angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 50° and 25°. What is the third angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 40° and 100°. What is the third angle (in degrees)?
  21. 21.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?
  22. 22.Three angles together make a straight line. Two of them are 70° and 45°. What is the third angle (in degrees)?
  23. 23.You face East and turn clockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  24. 24.Three angles together make a straight line. Two of them are 30° and 30°. What is the third angle (in degrees)?
  25. 25.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) South (c) West (d) East
  26. 26.You face West and turn clockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  27. 27.An angle measures 120°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
  28. 28.Four angles meet at a point. Three of them are 70°, 50° and 70°. What is the fourth angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 1 to 3. How many degrees does it turn?
  30. 30.The minute hand of a clock turns clockwise from 8 to 12. How many degrees does it turn?
  31. 31.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Right
  32. 32.Four angles meet at a point. Three of them are 50°, 50° and 120°. What is the fourth angle (in degrees)?
  33. 33.The minute hand of a clock turns clockwise from 1 to 8. How many degrees does it turn?
  34. 34.Four angles meet at a point. Three of them are 30°, 60° and 80°. What is the fourth angle (in degrees)?
  35. 35.The minute hand of a clock turns clockwise from 7 to 6. How many degrees does it turn?
  36. 36.Four angles meet at a point. Three of them are 50°, 50° and 180°. What is the fourth angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 60°, 50° and 180°. What is the fourth angle (in degrees)?
  38. 38.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  39. 39.The minute hand of a clock turns clockwise from 2 to 5. How many degrees does it turn?
  40. 40.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?

Answer key

  1. 105
  2. Acute
  3. 95
  4. 20
  5. 50
  6. 15
  7. Reflex
  8. 50
  9. Straight
  10. South
  11. South
  12. Acute
  13. 160
  14. 70
  15. 36
  16. 100
  17. 190
  18. 45
  19. 105
  20. 40
  21. 330
  22. 65
  23. North
  24. 120
  25. West
  26. North
  27. Obtuse
  28. 170
  29. 60
  30. 120
  31. Right
  32. 140
  33. 210
  34. 190
  35. 330
  36. 80
  37. 70
  38. 30
  39. 90
  40. 72

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