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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 508 · 40 sums
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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 70°, 30° and 80°. What is the fourth angle (in degrees)?
  2. 2.You face North and turn clockwise through 270°. Which direction do you face now? (a) West (b) South (c) North (d) East
  3. 3.Three angles together make a straight line. Two of them are 25° and 40°. What is the third angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 60°, 100° and 100°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 40° and 10°. What is the third angle (in degrees)?
  6. 6.An angle measures 50°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  7. 7.Three angles together make a straight line. Two of them are 90° and 70°. What is the third angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 75° and 60°. What is the third angle (in degrees)?
  9. 9.An angle measures 275°. What kind of angle is it? (a) Reflex (b) Straight (c) Right
  10. 10.An angle measures 175°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  11. 11.Four angles meet at a point. Three of them are 30°, 80° and 190°. What is the fourth angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 55° and 85°. What is the third angle (in degrees)?
  13. 13.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) East (d) South
  14. 14.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  15. 15.An angle measures 250°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  16. 16.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  17. 17.The minute hand of a clock turns clockwise from 3 to 4. How many degrees does it turn?
  18. 18.An angle measures 20°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  19. 19.Three angles together make a straight line. Two of them are 10° and 25°. What is the third angle (in degrees)?
  20. 20.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 100°, 50° and 180°. What is the fourth angle (in degrees)?
  22. 22.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  23. 23.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) West (b) East (c) North (d) South
  24. 24.Three angles together make a straight line. Two of them are 30° and 135°. What is the third angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 85° and 10°. What is the third angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 60° and 65°. What is the third angle (in degrees)?
  27. 27.An angle measures 115°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  28. 28.Four angles meet at a point. Three of them are 80°, 50° and 120°. What is the fourth angle (in degrees)?
  29. 29.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  30. 30.An angle measures 220°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  31. 31.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) West (d) North
  32. 32.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  33. 33.Three angles together make a straight line. Two of them are 30° and 50°. What is the third angle (in degrees)?
  34. 34.The minute hand of a clock turns clockwise from 2 to 4. How many degrees does it turn?
  35. 35.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  36. 36.An angle measures 135°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  37. 37.You face East and turn clockwise through 270°. Which direction do you face now? (a) West (b) East (c) North (d) South
  38. 38.Four angles meet at a point. Three of them are 100°, 50° and 80°. What is the fourth angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 90°, 80° and 70°. What is the fourth angle (in degrees)?
  40. 40.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?

Answer key

  1. 180
  2. West
  3. 115
  4. 100
  5. 130
  6. Acute
  7. 20
  8. 45
  9. Reflex
  10. Obtuse
  11. 60
  12. 40
  13. South
  14. Right
  15. Reflex
  16. 20
  17. 30
  18. Acute
  19. 145
  20. 45
  21. 30
  22. 36
  23. North
  24. 15
  25. 85
  26. 55
  27. Obtuse
  28. 110
  29. 30
  30. Reflex
  31. North
  32. Obtuse
  33. 100
  34. 60
  35. 30
  36. Obtuse
  37. North
  38. 130
  39. 120
  40. 90

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