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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 537 · 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 100°. What kind of angle is it? (a) Straight (b) Reflex (c) Obtuse
  2. 2.Three angles together make a straight line. Two of them are 45° and 100°. What is the third angle (in degrees)?
  3. 3.A straight angle (180°) is split into 3 equal angles. How big is each angle (in degrees)?
  4. 4.Three angles together make a straight line. Two of them are 100° and 10°. What is the third angle (in degrees)?
  5. 5.You face North and turn clockwise through 270°. Which direction do you face now? (a) East (b) West (c) South (d) North
  6. 6.Three angles together make a straight line. Two of them are 75° and 65°. What is the third angle (in degrees)?
  7. 7.Four angles meet at a point. Three of them are 90°, 100° and 30°. What is the fourth angle (in degrees)?
  8. 8.The minute hand of a clock turns clockwise from 1 to 11. How many degrees does it turn?
  9. 9.Four angles meet at a point. Three of them are 90°, 90° and 170°. What is the fourth angle (in degrees)?
  10. 10.Three angles together make a straight line. Two of them are 75° and 55°. What is the third angle (in degrees)?
  11. 11.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  12. 12.You face North and turn anticlockwise through 180°. Which direction do you face now? (a) East (b) West (c) South (d) North
  13. 13.An angle measures 145°. What kind of angle is it? (a) Reflex (b) Straight (c) Obtuse
  14. 14.Three angles together make a straight line. Two of them are 85° and 25°. What is the third angle (in degrees)?
  15. 15.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  16. 16.The minute hand of a clock turns clockwise from 5 to 7. How many degrees does it turn?
  17. 17.Four angles meet at a point. Three of them are 30°, 30° and 220°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 25° and 115°. What is the third angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 11 to 12. How many degrees does it turn?
  20. 20.A full turn (360°) is split into 4 equal angles. How big is each angle (in degrees)?
  21. 21.Three angles together make a straight line. Two of them are 100° and 65°. What is the third angle (in degrees)?
  22. 22.A full turn (360°) is split into 10 equal angles. How big is each angle (in degrees)?
  23. 23.Three angles together make a straight line. Two of them are 25° and 65°. What is the third angle (in degrees)?
  24. 24.The minute hand of a clock turns clockwise from 7 to 3. How many degrees does it turn?
  25. 25.Four angles meet at a point. Three of them are 40°, 50° and 130°. What is the fourth angle (in degrees)?
  26. 26.Three angles together make a straight line. Two of them are 75° and 25°. What is the third angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 40°, 50° and 50°. What is the fourth angle (in degrees)?
  28. 28.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  29. 29.The minute hand of a clock turns clockwise from 3 to 5. How many degrees does it turn?
  30. 30.Four angles meet at a point. Three of them are 60°, 80° and 30°. What is the fourth angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 80°, 30° and 180°. What is the fourth angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 10° and 145°. What is the third angle (in degrees)?
  33. 33.You face West and turn clockwise through 180°. Which direction do you face now? (a) North (b) East (c) South (d) West
  34. 34.The minute hand of a clock turns clockwise from 9 to 4. How many degrees does it turn?
  35. 35.Four angles meet at a point. Three of them are 70°, 80° and 30°. What is the fourth angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 50° and 40°. What is the third angle (in degrees)?
  37. 37.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  38. 38.An angle measures 205°. What kind of angle is it? (a) Right (b) Reflex (c) Acute
  39. 39.You face East and turn clockwise through 180°. Which direction do you face now? (a) North (b) South (c) West (d) East
  40. 40.An angle measures 45°. What kind of angle is it? (a) Acute (b) Straight (c) Right

Answer key

  1. Obtuse
  2. 35
  3. 60
  4. 70
  5. West
  6. 40
  7. 140
  8. 300
  9. 10
  10. 50
  11. Straight
  12. South
  13. Obtuse
  14. 70
  15. 30
  16. 60
  17. 80
  18. 40
  19. 30
  20. 90
  21. 15
  22. 36
  23. 90
  24. 240
  25. 140
  26. 80
  27. 220
  28. 100
  29. 60
  30. 190
  31. 70
  32. 25
  33. East
  34. 210
  35. 180
  36. 90
  37. 15
  38. Reflex
  39. West
  40. Acute

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