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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 681 · 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 80°, 90° and 70°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 10° and 160°. What is the third angle (in degrees)?
  3. 3.Three angles together make a straight line. Two of them are 25° and 25°. What is the third angle (in degrees)?
  4. 4.An angle measures 40°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  5. 5.Three angles together make a straight line. Two of them are 100° and 35°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 70°, 90° and 170°. What is the fourth angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 50°, 40° and 160°. What is the fourth angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 75° and 35°. What is the third angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 10° and 85°. What is the third angle (in degrees)?
  10. 10.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
  11. 11.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
  12. 12.Three angles together make a straight line. Two of them are 30° and 135°. What is the third angle (in degrees)?
  13. 13.Three angles together make a straight line. Two of them are 35° and 55°. What is the third angle (in degrees)?
  14. 14.Three angles together make a straight line. Two of them are 80° and 60°. What is the third angle (in degrees)?
  15. 15.Three angles together make a straight line. Two of them are 15° and 30°. What is the third angle (in degrees)?
  16. 16.Four angles meet at a point. Three of them are 50°, 70° and 110°. What is the fourth angle (in degrees)?
  17. 17.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  18. 18.The minute hand of a clock turns clockwise from 5 to 11. How many degrees does it turn?
  19. 19.Three angles together make a straight line. Two of them are 20° and 60°. What is the third angle (in degrees)?
  20. 20.Four angles meet at a point. Three of them are 70°, 50° and 120°. What is the fourth angle (in degrees)?
  21. 21.An angle measures 55°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  22. 22.Three angles together make a straight line. Two of them are 40° and 55°. What is the third angle (in degrees)?
  23. 23.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  24. 24.Four angles meet at a point. Three of them are 100°, 50° and 50°. What is the fourth angle (in degrees)?
  25. 25.Four angles meet at a point. Three of them are 50°, 70° and 60°. What is the fourth angle (in degrees)?
  26. 26.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  27. 27.The minute hand of a clock turns clockwise from 6 to 8. How many degrees does it turn?
  28. 28.Four angles meet at a point. Three of them are 100°, 80° and 130°. What is the fourth angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 4 to 5. How many degrees does it turn?
  30. 30.The minute hand of a clock turns clockwise from 6 to 4. How many degrees does it turn?
  31. 31.Three angles together make a straight line. Two of them are 80° and 10°. What is the third angle (in degrees)?
  32. 32.An angle measures 335°. What kind of angle is it? (a) Acute (b) Reflex (c) Obtuse
  33. 33.Four angles meet at a point. Three of them are 30°, 80° and 190°. What is the fourth angle (in degrees)?
  34. 34.An angle measures 140°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  35. 35.Four angles meet at a point. Three of them are 30°, 30° and 60°. What is the fourth angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 10° and 115°. What is the third angle (in degrees)?
  37. 37.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  38. 38.Four angles meet at a point. Three of them are 30°, 70° and 210°. What is the fourth angle (in degrees)?
  39. 39.You face West and turn clockwise through 90°. Which direction do you face now? (a) South (b) West (c) East (d) North
  40. 40.The minute hand of a clock turns clockwise from 6 to 5. How many degrees does it turn?

Answer key

  1. 120
  2. 10
  3. 130
  4. Acute
  5. 45
  6. 30
  7. 110
  8. 70
  9. 85
  10. East
  11. East
  12. 15
  13. 90
  14. 40
  15. 135
  16. 130
  17. 45
  18. 180
  19. 100
  20. 120
  21. Acute
  22. 85
  23. East
  24. 160
  25. 180
  26. Right
  27. 60
  28. 50
  29. 30
  30. 300
  31. 90
  32. Reflex
  33. 60
  34. Obtuse
  35. 240
  36. 55
  37. Obtuse
  38. 50
  39. North
  40. 330

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