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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 400 · 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 215°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  2. 2.Three angles together make a straight line. Two of them are 50° and 35°. What is the third angle (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Reflex
  4. 4.An angle measures 270°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  5. 5.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  6. 6.You face South and turn clockwise through 90°. Which direction do you face now? (a) East (b) West (c) South (d) North
  7. 7.Three angles together make a straight line. Two of them are 65° and 30°. What is the third angle (in degrees)?
  8. 8.Four angles meet at a point. Three of them are 100°, 100° and 30°. What is the fourth angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 65° and 25°. What is the third angle (in degrees)?
  10. 10.Four angles meet at a point. Three of them are 30°, 90° and 40°. What is the fourth angle (in degrees)?
  11. 11.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  12. 12.Three angles together make a straight line. Two of them are 60° and 45°. What is the third angle (in degrees)?
  13. 13.You face West and turn clockwise through 180°. Which direction do you face now? (a) South (b) West (c) East (d) North
  14. 14.Three angles together make a straight line. Two of them are 30° and 20°. What is the third angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 40°, 90° and 90°. What is the fourth angle (in degrees)?
  16. 16.Three angles together make a straight line. Two of them are 40° and 75°. What is the third angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 60° and 85°. What is the third angle (in degrees)?
  18. 18.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?
  19. 19.Three angles together make a straight line. Two of them are 50° and 15°. What is the third angle (in degrees)?
  20. 20.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  21. 21.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 60° and 70°. What is the third angle (in degrees)?
  23. 23.Four angles meet at a point. Three of them are 80°, 90° and 140°. What is the fourth angle (in degrees)?
  24. 24.An angle measures 90°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  25. 25.You face North and turn clockwise through 180°. Which direction do you face now? (a) North (b) West (c) East (d) South
  26. 26.Three angles together make a straight line. Two of them are 60° and 30°. What is the third angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 30°, 40° and 160°. What is the fourth angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 70°, 60° and 90°. What is the fourth angle (in degrees)?
  29. 29.You face South and turn clockwise through 270°. Which direction do you face now? (a) North (b) South (c) West (d) East
  30. 30.An angle measures 85°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  31. 31.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  32. 32.An angle measures 120°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  33. 33.Four angles meet at a point. Three of them are 50°, 40° and 50°. What is the fourth angle (in degrees)?
  34. 34.Three angles together make a straight line. Two of them are 20° and 70°. What is the third angle (in degrees)?
  35. 35.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 30° and 90°. What is the third angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 80°, 50° and 90°. What is the fourth angle (in degrees)?
  38. 38.The minute hand of a clock turns clockwise from 11 to 3. How many degrees does it turn?
  39. 39.Four angles meet at a point. Three of them are 50°, 80° and 90°. What is the fourth angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 5 to 3. How many degrees does it turn?

Answer key

  1. Reflex
  2. 95
  3. Straight
  4. Reflex
  5. 120
  6. West
  7. 85
  8. 130
  9. 90
  10. 200
  11. 72
  12. 75
  13. East
  14. 130
  15. 140
  16. 65
  17. 35
  18. 330
  19. 115
  20. 85
  21. 36
  22. 50
  23. 50
  24. Right
  25. South
  26. 90
  27. 130
  28. 140
  29. East
  30. Acute
  31. 15
  32. Obtuse
  33. 220
  34. 90
  35. 30
  36. 60
  37. 140
  38. 120
  39. 140
  40. 300

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