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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 502 · 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 55° and 105°. What is the third angle (in degrees)?
  2. 2.Four angles meet at a point. Three of them are 30°, 70° and 30°. What is the fourth angle (in degrees)?
  3. 3.A full turn (360°) is split into 6 equal angles. How big is each angle (in degrees)?
  4. 4.Four angles meet at a point. Three of them are 30°, 50° and 50°. What is the fourth angle (in degrees)?
  5. 5.Three angles together make a straight line. Two of them are 50° and 60°. What is the third angle (in degrees)?
  6. 6.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  7. 7.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  8. 8.Three angles together make a straight line. Two of them are 20° and 35°. What is the third angle (in degrees)?
  9. 9.You face South and turn anticlockwise through 90°. Which direction do you face now? (a) North (b) South (c) East (d) West
  10. 10.Three angles together make a straight line. Two of them are 30° and 70°. What is the third angle (in degrees)?
  11. 11.An angle measures 20°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  12. 12.Four angles meet at a point. Three of them are 30°, 40° and 70°. What is the fourth angle (in degrees)?
  13. 13.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  14. 14.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  15. 15.The minute hand of a clock turns clockwise from 12 to 1. How many degrees does it turn?
  16. 16.Three angles together make a straight line. Two of them are 90° and 45°. What is the third angle (in degrees)?
  17. 17.Four angles meet at a point. Three of them are 40°, 60° and 160°. What is the fourth angle (in degrees)?
  18. 18.Three angles together make a straight line. Two of them are 80° and 90°. What is the third angle (in degrees)?
  19. 19.The minute hand of a clock turns clockwise from 5 to 12. How many degrees does it turn?
  20. 20.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  21. 21.Four angles meet at a point. Three of them are 90°, 50° and 100°. What is the fourth angle (in degrees)?
  22. 22.You face West and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  23. 23.Three angles together make a straight line. Two of them are 75° and 80°. What is the third angle (in degrees)?
  24. 24.A straight angle (180°) is split into 9 equal angles. How big is each angle (in degrees)?
  25. 25.An angle measures 115°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  26. 26.Three angles together make a straight line. Two of them are 100° and 60°. What is the third angle (in degrees)?
  27. 27.Four angles meet at a point. Three of them are 60°, 90° and 110°. What is the fourth angle (in degrees)?
  28. 28.An angle measures 45°. What kind of angle is it? (a) Acute (b) Reflex (c) Right
  29. 29.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Reflex
  30. 30.Three angles together make a straight line. Two of them are 80° and 55°. What is the third angle (in degrees)?
  31. 31.Four angles meet at a point. Three of them are 40°, 90° and 110°. What is the fourth angle (in degrees)?
  32. 32.Three angles together make a straight line. Two of them are 30° and 115°. What is the third angle (in degrees)?
  33. 33.You face East and turn clockwise through 90°. Which direction do you face now? (a) East (b) South (c) North (d) West
  34. 34.Four angles meet at a point. Three of them are 100°, 40° and 140°. What is the fourth angle (in degrees)?
  35. 35.Three angles together make a straight line. Two of them are 80° and 15°. What is the third angle (in degrees)?
  36. 36.Four angles meet at a point. Three of them are 30°, 90° and 80°. What is the fourth angle (in degrees)?
  37. 37.Three angles together make a straight line. Two of them are 65° and 25°. What is the third angle (in degrees)?
  38. 38.Four angles meet at a point. Three of them are 100°, 60° and 40°. What is the fourth angle (in degrees)?
  39. 39.Three angles together make a straight line. Two of them are 30° and 25°. What is the third angle (in degrees)?
  40. 40.Three angles together make a straight line. Two of them are 65° and 65°. What is the third angle (in degrees)?

Answer key

  1. 20
  2. 230
  3. 60
  4. 230
  5. 70
  6. 30
  7. Acute
  8. 125
  9. East
  10. 80
  11. Acute
  12. 220
  13. 15
  14. 90
  15. 30
  16. 45
  17. 100
  18. 10
  19. 210
  20. Right
  21. 120
  22. East
  23. 25
  24. 20
  25. Obtuse
  26. 20
  27. 100
  28. Acute
  29. Straight
  30. 45
  31. 120
  32. 35
  33. South
  34. 80
  35. 85
  36. 160
  37. 90
  38. 160
  39. 125
  40. 50

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