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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 123 · 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 100° and 65°. What is the third angle (in degrees)?
  2. 2.Four angles meet at a point. Three of them are 60°, 40° and 130°. What is the fourth angle (in degrees)?
  3. 3.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  4. 4.Four angles meet at a point. Three of them are 70°, 100° and 160°. What is the fourth angle (in degrees)?
  5. 5.Four angles meet at a point. Three of them are 60°, 100° and 80°. What is the fourth angle (in degrees)?
  6. 6.The minute hand of a clock turns clockwise from 4 to 12. How many degrees does it turn?
  7. 7.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  8. 8.Four angles meet at a point. Three of them are 60°, 100° and 60°. What is the fourth angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 45° and 35°. What is the third angle (in degrees)?
  10. 10.You face East and turn clockwise through 180°. Which direction do you face now? (a) South (b) North (c) West (d) East
  11. 11.An angle measures 170°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  12. 12.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  13. 13.You face West and turn clockwise through 90°. Which direction do you face now? (a) West (b) South (c) East (d) North
  14. 14.Three angles together make a straight line. Two of them are 70° and 15°. What is the third angle (in degrees)?
  15. 15.An angle measures 220°. What kind of angle is it? (a) Reflex (b) Right (c) Obtuse
  16. 16.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) South (c) North (d) East
  17. 17.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) West (b) East (c) North (d) South
  18. 18.Four angles meet at a point. Three of them are 90°, 90° and 50°. What is the fourth angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 55° and 40°. What is the third angle (in degrees)?
  20. 20.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) North (d) West
  21. 21.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  22. 22.An angle measures 65°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  23. 23.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  24. 24.You face North and turn clockwise through 180°. Which direction do you face now? (a) East (b) North (c) South (d) West
  25. 25.Four angles meet at a point. Three of them are 90°, 70° and 70°. What is the fourth angle (in degrees)?
  26. 26.You face South and turn clockwise through 270°. Which direction do you face now? (a) South (b) North (c) East (d) West
  27. 27.Three angles together make a straight line. Two of them are 60° and 45°. What is the third angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 95° and 50°. What is the third angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 11 to 9. How many degrees does it turn?
  30. 30.Four angles meet at a point. Three of them are 70°, 60° and 220°. What is the fourth angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 100°, 80° and 160°. What is the fourth angle (in degrees)?
  32. 32.Four angles meet at a point. Three of them are 60°, 70° and 200°. What is the fourth angle (in degrees)?
  33. 33.An angle measures 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  34. 34.Four angles meet at a point. Three of them are 50°, 80° and 210°. What is the fourth angle (in degrees)?
  35. 35.An angle measures 20°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  36. 36.Three angles together make a straight line. Two of them are 25° and 75°. What is the third angle (in degrees)?
  37. 37.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  38. 38.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) North (b) East (c) West (d) South
  39. 39.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  40. 40.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) East (c) West (d) South

Answer key

  1. 15
  2. 130
  3. Right
  4. 30
  5. 120
  6. 240
  7. 90
  8. 140
  9. 100
  10. West
  11. Obtuse
  12. 20
  13. North
  14. 95
  15. Reflex
  16. West
  17. North
  18. 130
  19. 85
  20. West
  21. 36
  22. Acute
  23. 45
  24. South
  25. 130
  26. East
  27. 75
  28. 35
  29. 300
  30. 10
  31. 20
  32. 30
  33. Straight
  34. 20
  35. Acute
  36. 80
  37. 30
  38. North
  39. 36
  40. North

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