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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 398 · 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.Three angles together make a straight line. Two of them are 10° and 90°. What is the third angle (in degrees)?
  2. 2.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  3. 3.The minute hand of a clock turns clockwise from 10 to 7. How many degrees does it turn?
  4. 4.The minute hand of a clock turns clockwise from 3 to 5. How many degrees does it turn?
  5. 5.You face South and turn clockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East
  6. 6.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  7. 7.The minute hand of a clock turns clockwise from 8 to 1. How many degrees does it turn?
  8. 8.The minute hand of a clock turns clockwise from 12 to 1. How many degrees does it turn?
  9. 9.Four angles meet at a point. Three of them are 70°, 100° and 70°. What is the fourth angle (in degrees)?
  10. 10.An angle measures 170°. What kind of angle is it? (a) Obtuse (b) Right (c) Reflex
  11. 11.Three angles together make a straight line. Two of them are 40° and 100°. What is the third angle (in degrees)?
  12. 12.Four angles meet at a point. Three of them are 80°, 50° and 210°. What is the fourth angle (in degrees)?
  13. 13.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  14. 14.Four angles meet at a point. Three of them are 50°, 40° and 240°. What is the fourth angle (in degrees)?
  15. 15.An angle measures 15°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  16. 16.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 90° and 45°. What is the third angle (in degrees)?
  18. 18.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) West (c) East (d) South
  19. 19.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  20. 20.A full turn (360°) is split into 8 equal angles. How big is each angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 45° and 125°. What is the third angle (in degrees)?
  22. 22.Three angles together make a straight line. Two of them are 25° and 20°. What is the third angle (in degrees)?
  23. 23.The minute hand of a clock turns clockwise from 7 to 3. How many degrees does it turn?
  24. 24.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  25. 25.You face West and turn clockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  26. 26.Three angles together make a straight line. Two of them are 55° and 50°. What is the third angle (in degrees)?
  27. 27.An angle measures 180°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  28. 28.Three angles together make a straight line. Two of them are 35° and 35°. What is the third angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 10° and 110°. What is the third angle (in degrees)?
  30. 30.You face North and turn clockwise through 90°. Which direction do you face now? (a) North (b) South (c) East (d) West
  31. 31.Three angles together make a straight line. Two of them are 35° and 70°. What is the third angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 55° and 35°. What is the third angle (in degrees)?
  33. 33.An angle measures 260°. What kind of angle is it? (a) Reflex (b) Acute (c) Straight
  34. 34.The minute hand of a clock turns clockwise from 2 to 8. How many degrees does it turn?
  35. 35.Three angles together make a straight line. Two of them are 15° and 10°. What is the third angle (in degrees)?
  36. 36.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  37. 37.Four angles meet at a point. Three of them are 40°, 50° and 100°. What is the fourth angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 45° and 105°. What is the third angle (in degrees)?
  39. 39.Three angles together make a straight line. Two of them are 20° and 55°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 100° and 65°. What is the third angle (in degrees)?

Answer key

  1. 80
  2. 40
  3. 270
  4. 60
  5. North
  6. North
  7. 150
  8. 30
  9. 120
  10. Obtuse
  11. 40
  12. 20
  13. Right
  14. 30
  15. Acute
  16. 20
  17. 45
  18. East
  19. 90
  20. 45
  21. 10
  22. 135
  23. 240
  24. 18
  25. South
  26. 75
  27. Straight
  28. 110
  29. 60
  30. East
  31. 75
  32. 90
  33. Reflex
  34. 180
  35. 155
  36. 36
  37. 170
  38. 30
  39. 105
  40. 15

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