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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 446 · 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 30° and 40°. What is the third angle (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Straight (b) Reflex (c) Right
  3. 3.Four angles meet at a point. Three of them are 80°, 30° and 100°. What is the fourth angle (in degrees)?
  4. 4.An angle measures 155°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  5. 5.You face North and turn clockwise through 270°. Which direction do you face now? (a) South (b) West (c) North (d) East
  6. 6.The minute hand of a clock turns clockwise from 12 to 5. How many degrees does it turn?
  7. 7.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  8. 8.Three angles together make a straight line. Two of them are 40° and 25°. What is the third angle (in degrees)?
  9. 9.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 100° and 55°. What is the third angle (in degrees)?
  11. 11.Four angles meet at a point. Three of them are 80°, 60° and 170°. What is the fourth angle (in degrees)?
  12. 12.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  13. 13.The minute hand of a clock turns clockwise from 4 to 10. How many degrees does it turn?
  14. 14.An angle measures 65°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  15. 15.You face East and turn clockwise through 90°. Which direction do you face now? (a) West (b) North (c) South (d) East
  16. 16.You face South and turn clockwise through 90°. Which direction do you face now? (a) North (b) East (c) South (d) West
  17. 17.An angle measures 160°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  18. 18.Three angles together make a straight line. Two of them are 75° and 95°. What is the third angle (in degrees)?
  19. 19.Three angles together make a straight line. Two of them are 95° and 70°. What is the third angle (in degrees)?
  20. 20.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  21. 21.Three angles together make a straight line. Two of them are 50° and 20°. What is the third angle (in degrees)?
  22. 22.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Right (c) Straight
  23. 23.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 70°, 90° and 140°. What is the fourth angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 85° and 85°. What is the third angle (in degrees)?
  26. 26.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  27. 27.The minute hand of a clock turns clockwise from 11 to 6. How many degrees does it turn?
  28. 28.Four angles meet at a point. Three of them are 80°, 30° and 170°. What is the fourth angle (in degrees)?
  29. 29.An angle measures 75°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  30. 30.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  31. 31.Three angles together make a straight line. Two of them are 45° and 45°. What is the third angle (in degrees)?
  32. 32.An angle measures 270°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  33. 33.The minute hand of a clock turns clockwise from 6 to 10. How many degrees does it turn?
  34. 34.Three angles together make a straight line. Two of them are 35° and 135°. What is the third angle (in degrees)?
  35. 35.Four angles meet at a point. Three of them are 40°, 50° and 180°. What is the fourth angle (in degrees)?
  36. 36.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 65° and 55°. What is the third angle (in degrees)?
  38. 38.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  39. 39.Four angles meet at a point. Three of them are 100°, 70° and 130°. What is the fourth angle (in degrees)?
  40. 40.You face South and turn clockwise through 270°. Which direction do you face now? (a) West (b) North (c) South (d) East

Answer key

  1. 110
  2. Right
  3. 150
  4. Obtuse
  5. West
  6. 150
  7. 30
  8. 115
  9. 60
  10. 25
  11. 50
  12. 45
  13. 180
  14. Acute
  15. South
  16. West
  17. Obtuse
  18. 10
  19. 15
  20. Acute
  21. 110
  22. Straight
  23. 72
  24. 60
  25. 10
  26. 36
  27. 210
  28. 80
  29. Acute
  30. 20
  31. 90
  32. Reflex
  33. 120
  34. 10
  35. 90
  36. 90
  37. 60
  38. 60
  39. 60
  40. East

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