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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 884 · 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.An angle measures 180°. What kind of angle is it? (a) Reflex (b) Straight (c) Right
  2. 2.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  3. 3.An angle measures 205°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex
  4. 4.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 95° and 40°. What is the third angle (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  7. 7.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  8. 8.You face North and turn clockwise through 90°. Which direction do you face now? (a) South (b) North (c) West (d) East
  9. 9.Three angles together make a straight line. Two of them are 75° and 15°. What is the third angle (in degrees)?
  10. 10.An angle measures 145°. What kind of angle is it? (a) Right (b) Reflex (c) Obtuse
  11. 11.An angle measures 305°. What kind of angle is it? (a) Right (b) Obtuse (c) Reflex
  12. 12.The minute hand of a clock turns clockwise from 3 to 9. How many degrees does it turn?
  13. 13.The minute hand of a clock turns clockwise from 7 to 3. How many degrees does it turn?
  14. 14.The minute hand of a clock turns clockwise from 3 to 7. How many degrees does it turn?
  15. 15.Three angles together make a straight line. Two of them are 90° and 10°. What is the third angle (in degrees)?
  16. 16.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  17. 17.An angle measures 75°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  18. 18.A full turn (360°) is split into 9 equal angles. How big is each angle (in degrees)?
  19. 19.An angle measures 25°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  20. 20.Four angles meet at a point. Three of them are 50°, 90° and 190°. What is the fourth angle (in degrees)?
  21. 21.The minute hand of a clock turns clockwise from 12 to 2. How many degrees does it turn?
  22. 22.You face East and turn clockwise through 270°. Which direction do you face now? (a) East (b) North (c) South (d) West
  23. 23.An angle measures 150°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Straight
  24. 24.Three angles together make a straight line. Two of them are 35° and 115°. What is the third angle (in degrees)?
  25. 25.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 35° and 15°. What is the third angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 70°, 60° and 70°. What is the fourth angle (in degrees)?
  28. 28.An angle measures 110°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  29. 29.An angle measures 35°. What kind of angle is it? (a) Acute (b) Right (c) Reflex
  30. 30.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) South (d) East
  31. 31.Three angles together make a straight line. Two of them are 80° and 30°. What is the third angle (in degrees)?
  32. 32.You face North and turn anticlockwise 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 70° and 95°. What is the third angle (in degrees)?
  34. 34.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  35. 35.Three angles together make a straight line. Two of them are 95° and 75°. What is the third angle (in degrees)?
  36. 36.You face East and turn clockwise through 90°. Which direction do you face now? (a) North (b) West (c) South (d) East
  37. 37.Three angles together make a straight line. Two of them are 50° and 25°. What is the third angle (in degrees)?
  38. 38.An angle measures 100°. What kind of angle is it? (a) Reflex (b) Obtuse (c) Right
  39. 39.The minute hand of a clock turns clockwise from 7 to 2. How many degrees does it turn?
  40. 40.Three angles together make a straight line. Two of them are 20° and 65°. What is the third angle (in degrees)?

Answer key

  1. Straight
  2. 120
  3. Reflex
  4. 30
  5. 45
  6. Right
  7. 60
  8. East
  9. 90
  10. Obtuse
  11. Reflex
  12. 180
  13. 240
  14. 120
  15. 80
  16. North
  17. Acute
  18. 40
  19. Acute
  20. 30
  21. 60
  22. North
  23. Obtuse
  24. 30
  25. 90
  26. 130
  27. 160
  28. Obtuse
  29. Acute
  30. West
  31. 70
  32. South
  33. 15
  34. Obtuse
  35. 10
  36. South
  37. 105
  38. Obtuse
  39. 210
  40. 95

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