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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 974 · 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.Four angles meet at a point. Three of them are 30°, 30° and 50°. What is the fourth angle (in degrees)?
  2. 2.Three angles together make a straight line. Two of them are 80° and 85°. What is the third angle (in degrees)?
  3. 3.Four angles meet at a point. Three of them are 40°, 100° and 140°. What is the fourth angle (in degrees)?
  4. 4.An angle measures 140°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  5. 5.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Reflex
  6. 6.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 40°, 50° and 240°. What is the fourth angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  9. 9.The minute hand of a clock turns clockwise from 12 to 6. How many degrees does it turn?
  10. 10.The minute hand of a clock turns clockwise from 10 to 12. How many degrees does it turn?
  11. 11.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) East (c) West (d) North
  12. 12.A straight angle (180°) is split into 6 equal angles. How big is each angle (in degrees)?
  13. 13.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  14. 14.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  15. 15.Four angles meet at a point. Three of them are 40°, 80° and 180°. What is the fourth angle (in degrees)?
  16. 16.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  17. 17.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  18. 18.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  19. 19.Four angles meet at a point. Three of them are 70°, 70° and 150°. What is the fourth angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  21. 21.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 40°, 70° and 100°. What is the fourth angle (in degrees)?
  23. 23.An angle measures 40°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  24. 24.The minute hand of a clock turns clockwise from 7 to 12. How many degrees does it turn?
  25. 25.Four angles meet at a point. Three of them are 50°, 40° and 150°. What is the fourth angle (in degrees)?
  26. 26.The minute hand of a clock turns clockwise from 3 to 1. How many degrees does it turn?
  27. 27.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  28. 28.Three angles together make a straight line. Two of them are 65° and 35°. What is the third angle (in degrees)?
  29. 29.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  30. 30.The minute hand of a clock turns clockwise from 8 to 4. How many degrees does it turn?
  31. 31.The minute hand of a clock turns clockwise from 2 to 1. How many degrees does it turn?
  32. 32.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) West (c) South (d) East
  33. 33.Three angles together make a straight line. Two of them are 90° and 80°. What is the third angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 70°, 80° and 90°. What is the fourth angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 100°, 60° and 100°. What is the fourth angle (in degrees)?
  36. 36.An angle measures 20°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Acute
  37. 37.Three angles together make a straight line. Two of them are 25° and 100°. What is the third angle (in degrees)?
  38. 38.An angle measures 275°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  39. 39.Three angles together make a straight line. Two of them are 30° and 20°. What is the third angle (in degrees)?
  40. 40.Four angles meet at a point. Three of them are 60°, 50° and 60°. What is the fourth angle (in degrees)?

Answer key

  1. 250
  2. 15
  3. 80
  4. Obtuse
  5. Straight
  6. 80
  7. 30
  8. 10
  9. 180
  10. 60
  11. South
  12. 30
  13. 60
  14. 20
  15. 60
  16. 18
  17. 36
  18. 36
  19. 70
  20. 210
  21. 40
  22. 150
  23. Acute
  24. 150
  25. 120
  26. 300
  27. 60
  28. 80
  29. 45
  30. 240
  31. 330
  32. East
  33. 10
  34. 120
  35. 100
  36. Acute
  37. 55
  38. Reflex
  39. 130
  40. 190

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