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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 89 · 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) Acute (b) Straight (c) Right
  2. 2.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  3. 3.You face West and turn anticlockwise through 270°. Which direction do you face now? (a) East (b) South (c) West (d) North
  4. 4.You face East and turn anticlockwise through 90°. Which direction do you face now? (a) West (b) North (c) East (d) South
  5. 5.Three angles together make a straight line. Two of them are 90° and 65°. What is the third angle (in degrees)?
  6. 6.Four angles meet at a point. Three of them are 90°, 50° and 70°. What is the fourth angle (in degrees)?
  7. 7.An angle measures 40°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  8. 8.Three angles together make a straight line. Two of them are 55° and 55°. What is the third angle (in degrees)?
  9. 9.Three angles together make a straight line. Two of them are 25° and 65°. What is the third angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 30° and 40°. What is the third angle (in degrees)?
  11. 11.The minute hand of a clock turns clockwise from 2 to 10. How many degrees does it turn?
  12. 12.The minute hand of a clock turns clockwise from 5 to 9. How many degrees does it turn?
  13. 13.Four angles meet at a point. Three of them are 30°, 40° and 180°. What is the fourth angle (in degrees)?
  14. 14.Four angles meet at a point. Three of them are 50°, 30° and 50°. What is the fourth angle (in degrees)?
  15. 15.An angle measures 120°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  16. 16.Three angles together make a straight line. Two of them are 40° and 40°. What is the third angle (in degrees)?
  17. 17.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  18. 18.An angle measures 190°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  19. 19.Three angles together make a straight line. Two of them are 60° and 90°. What is the third angle (in degrees)?
  20. 20.The minute hand of a clock turns clockwise from 3 to 9. How many degrees does it turn?
  21. 21.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  22. 22.Four angles meet at a point. Three of them are 40°, 90° and 160°. What is the fourth angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 30° and 115°. What is the third angle (in degrees)?
  24. 24.An angle measures 305°. What kind of angle is it? (a) Straight (b) Reflex (c) Acute
  25. 25.Three angles together make a straight line. Two of them are 25° and 115°. What is the third angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 95° and 30°. What is the third angle (in degrees)?
  27. 27.An angle measures 355°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  28. 28.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  29. 29.An angle measures 300°. What kind of angle is it? (a) Obtuse (b) Reflex (c) Acute
  30. 30.Three angles together make a straight line. Two of them are 20° and 60°. What is the third angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 90°, 30° and 230°. What is the fourth angle (in degrees)?
  32. 32.An angle measures 75°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  33. 33.The minute hand of a clock turns clockwise from 8 to 3. How many degrees does it turn?
  34. 34.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 30° and 105°. What is the third angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 65° and 10°. What is the third angle (in degrees)?
  37. 37.You face North and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  38. 38.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) East (d) West
  39. 39.Three angles together make a straight line. Two of them are 60° and 10°. What is the third angle (in degrees)?
  40. 40.The minute hand of a clock turns clockwise from 1 to 12. How many degrees does it turn?

Answer key

  1. Straight
  2. Right
  3. North
  4. North
  5. 25
  6. 150
  7. Acute
  8. 70
  9. 90
  10. 110
  11. 240
  12. 120
  13. 110
  14. 230
  15. Obtuse
  16. 100
  17. South
  18. Reflex
  19. 30
  20. 180
  21. 60
  22. 70
  23. 35
  24. Reflex
  25. 40
  26. 55
  27. Reflex
  28. 60
  29. Reflex
  30. 100
  31. 10
  32. Acute
  33. 210
  34. 90
  35. 45
  36. 105
  37. South
  38. West
  39. 110
  40. 330

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