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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 75 · 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 20° and 30°. What is the third angle (in degrees)?
  2. 2.An angle measures 55°. What kind of angle is it? (a) Reflex (b) Acute (c) Obtuse
  3. 3.Four angles meet at a point. Three of them are 70°, 40° and 80°. What is the fourth angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 75° and 30°. What is the third angle (in degrees)?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  6. 6.The minute hand of a clock turns clockwise from 12 to 3. How many degrees does it turn?
  7. 7.An angle measures 30°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  8. 8.Four angles meet at a point. Three of them are 70°, 80° and 170°. What is the fourth angle (in degrees)?
  9. 9.An angle measures 285°. What kind of angle is it? (a) Right (b) Straight (c) Reflex
  10. 10.An angle measures 80°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  11. 11.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  12. 12.Four angles meet at a point. Three of them are 100°, 50° and 40°. What is the fourth angle (in degrees)?
  13. 13.An angle measures 180°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  14. 14.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  15. 15.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) North (c) West (d) South
  16. 16.Three angles together make a straight line. Two of them are 70° and 20°. What is the third angle (in degrees)?
  17. 17.Three angles together make a straight line. Two of them are 10° and 115°. What is the third angle (in degrees)?
  18. 18.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) South (b) West (c) East (d) North
  19. 19.The minute hand of a clock turns clockwise from 7 to 10. How many degrees does it turn?
  20. 20.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  21. 21.Four angles meet at a point. Three of them are 70°, 90° and 120°. What is the fourth angle (in degrees)?
  22. 22.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  23. 23.Four angles meet at a point. Three of them are 100°, 90° and 160°. What is the fourth angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 3 to 12. How many degrees does it turn?
  25. 25.An angle measures 110°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  26. 26.Three angles together make a straight line. Two of them are 50° and 80°. What is the third angle (in degrees)?
  27. 27.Three angles together make a straight line. Two of them are 50° and 40°. What is the third angle (in degrees)?
  28. 28.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 2 to 6. How many degrees does it turn?
  30. 30.You face North and turn clockwise through 270°. Which direction do you face now? (a) West (b) South (c) East (d) North
  31. 31.The minute hand of a clock turns clockwise from 5 to 11. How many degrees does it turn?
  32. 32.Four angles meet at a point. Three of them are 100°, 40° and 100°. What is the fourth angle (in degrees)?
  33. 33.A straight angle (180°) is split into 4 equal angles. How big is each angle (in degrees)?
  34. 34.Four angles meet at a point. Three of them are 30°, 90° and 70°. What is the fourth angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 40° and 15°. What is the third angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 70° and 25°. What is the third angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 55° and 115°. What is the third angle (in degrees)?
  38. 38.Three angles together make a straight line. Two of them are 10° and 55°. What is the third angle (in degrees)?
  39. 39.You face South and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) South (c) North (d) West
  40. 40.An angle measures 100°. What kind of angle is it? (a) Straight (b) Obtuse (c) Reflex

Answer key

  1. 130
  2. Acute
  3. 170
  4. 75
  5. Right
  6. 90
  7. Acute
  8. 40
  9. Reflex
  10. Acute
  11. 210
  12. 170
  13. Straight
  14. 60
  15. East
  16. 90
  17. 55
  18. South
  19. 90
  20. 36
  21. 80
  22. 30
  23. 10
  24. 270
  25. Obtuse
  26. 50
  27. 90
  28. 20
  29. 120
  30. West
  31. 180
  32. 120
  33. 45
  34. 170
  35. 125
  36. 85
  37. 10
  38. 115
  39. North
  40. Obtuse

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