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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 233 · 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.An angle measures 170°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  2. 2.An angle measures 85°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  3. 3.Three angles together make a straight line. Two of them are 35° and 120°. What is the third angle (in degrees)?
  4. 4.The minute hand of a clock turns clockwise from 5 to 3. How many degrees does it turn?
  5. 5.Three angles together make a straight line. Two of them are 95° and 50°. What is the third angle (in degrees)?
  6. 6.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  7. 7.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  8. 8.Four angles meet at a point. Three of them are 40°, 80° and 170°. What is the fourth angle (in degrees)?
  9. 9.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  10. 10.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 60°, 80° and 110°. What is the fourth angle (in degrees)?
  12. 12.An angle measures 280°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  13. 13.The minute hand of a clock turns clockwise from 2 to 1. How many degrees does it turn?
  14. 14.Three angles together make a straight line. Two of them are 15° and 145°. 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.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  17. 17.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  18. 18.An angle measures 100°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  19. 19.Three angles together make a straight line. Two of them are 55° and 30°. What is the third angle (in degrees)?
  20. 20.Four angles meet at a point. Three of them are 40°, 70° and 80°. What is the fourth angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 15° and 40°. What is the third angle (in degrees)?
  22. 22.An angle measures 15°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  23. 23.The minute hand of a clock turns clockwise from 12 to 8. How many degrees does it turn?
  24. 24.Three angles together make a straight line. Two of them are 70° and 80°. What is the third angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  26. 26.An angle measures 145°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  27. 27.A straight angle (180°) 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 40°, 30° and 90°. What is the fourth angle (in degrees)?
  29. 29.Four angles meet at a point. Three of them are 40°, 80° and 100°. What is the fourth angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 10 to 1. How many degrees does it turn?
  31. 31.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) South (c) North (d) East
  32. 32.You face East and turn clockwise through 270°. Which direction do you face now? (a) South (b) North (c) West (d) East
  33. 33.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 50°, 30° and 90°. What is the fourth angle (in degrees)?
  35. 35.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  36. 36.You face North and turn clockwise through 90°. Which direction do you face now? (a) East (b) North (c) South (d) West
  37. 37.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) East (d) North
  38. 38.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) West (c) East (d) South
  39. 39.Three angles together make a straight line. Two of them are 95° and 20°. What is the third angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 80°, 70° and 180°. What is the fourth angle (in degrees)?

Answer key

  1. Obtuse
  2. Acute
  3. 25
  4. 300
  5. 35
  6. West
  7. 18
  8. 70
  9. Straight
  10. 45
  11. 110
  12. Reflex
  13. 330
  14. 20
  15. 36
  16. 72
  17. 30
  18. Obtuse
  19. 95
  20. 170
  21. 125
  22. Acute
  23. 240
  24. 30
  25. 100
  26. Obtuse
  27. 60
  28. 200
  29. 140
  30. 90
  31. North
  32. North
  33. 30
  34. 190
  35. 90
  36. East
  37. North
  38. South
  39. 65
  40. 30

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