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Class 6 Maths Worksheet: Angles and Geometry

Maths worksheets lesson 46: Basic geometry: angles and turns · Set 325 · 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 80° and 55°. What is the third angle (in degrees)?
  2. 2.The minute hand of a clock turns clockwise from 10 to 3. How many degrees does it turn?
  3. 3.A full turn (360°) is split into 3 equal angles. How big is each angle (in degrees)?
  4. 4.An angle measures 210°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  5. 5.Three angles together make a straight line. Two of them are 40° and 110°. What is the third angle (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  7. 7.A straight angle (180°) is split into 12 equal angles. How big is each angle (in degrees)?
  8. 8.Four angles meet at a point. Three of them are 50°, 70° and 110°. What is the fourth angle (in degrees)?
  9. 9.The minute hand of a clock turns clockwise from 10 to 7. How many degrees does it turn?
  10. 10.Three angles together make a straight line. Two of them are 55° and 90°. What is the third angle (in degrees)?
  11. 11.You face North and turn anticlockwise through 90°. Which direction do you face now? (a) East (b) South (c) West (d) North
  12. 12.The minute hand of a clock turns clockwise from 12 to 6. How many degrees does it turn?
  13. 13.A straight angle (180°) is split into 10 equal angles. How big is each angle (in degrees)?
  14. 14.An angle measures 20°. What kind of angle is it? (a) Right (b) Acute (c) Reflex
  15. 15.Three angles together make a straight line. Two of them are 60° and 70°. What is the third angle (in degrees)?
  16. 16.A full turn (360°) is split into 5 equal angles. How big is each angle (in degrees)?
  17. 17.You face East and turn anticlockwise through 180°. Which direction do you face now? (a) North (b) East (c) West (d) South
  18. 18.A straight angle (180°) is split into 5 equal angles. How big is each angle (in degrees)?
  19. 19.You face North and turn clockwise through 90°. Which direction do you face now? (a) West (b) East (c) North (d) South
  20. 20.Four angles meet at a point. Three of them are 80°, 40° and 210°. What is the fourth angle (in degrees)?
  21. 21.An angle measures 90°. What kind of angle is it? (a) Right (b) Reflex (c) Straight
  22. 22.The minute hand of a clock turns clockwise from 11 to 3. How many degrees does it turn?
  23. 23.Three angles together make a straight line. Two of them are 90° and 25°. What is the third angle (in degrees)?
  24. 24.Four angles meet at a point. Three of them are 100°, 80° and 160°. What is the fourth angle (in degrees)?
  25. 25.Three angles together make a straight line. Two of them are 45° and 30°. What is the third angle (in degrees)?
  26. 26.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Acute (c) Reflex
  27. 27.Four angles meet at a point. Three of them are 80°, 100° and 120°. What is the fourth angle (in degrees)?
  28. 28.Four angles meet at a point. Three of them are 30°, 40° and 40°. What is the fourth angle (in degrees)?
  29. 29.Three angles together make a straight line. Two of them are 20° and 55°. What is the third angle (in degrees)?
  30. 30.A straight angle (180°) is split into 2 equal angles. How big is each angle (in degrees)?
  31. 31.An angle measures 340°. What kind of angle is it? (a) Acute (b) Reflex (c) Straight
  32. 32.A full turn (360°) is split into 12 equal angles. How big is each angle (in degrees)?
  33. 33.You face East and turn clockwise through 180°. Which direction do you face now? (a) South (b) West (c) North (d) East
  34. 34.You face West and turn anticlockwise through 90°. Which direction do you face now? (a) South (b) West (c) East (d) North
  35. 35.Four angles meet at a point. Three of them are 30°, 40° and 270°. What is the fourth angle (in degrees)?
  36. 36.Three angles together make a straight line. Two of them are 55° and 25°. What is the third angle (in degrees)?
  37. 37.An angle measures 30°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  38. 38.Four angles meet at a point. Three of them are 60°, 90° and 170°. What is the fourth angle (in degrees)?
  39. 39.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  40. 40.Four angles meet at a point. Three of them are 40°, 100° and 60°. What is the fourth angle (in degrees)?

Answer key

  1. 45
  2. 150
  3. 120
  4. Reflex
  5. 30
  6. Straight
  7. 15
  8. 130
  9. 270
  10. 35
  11. West
  12. 180
  13. 18
  14. Acute
  15. 50
  16. 72
  17. West
  18. 36
  19. East
  20. 30
  21. Right
  22. 120
  23. 65
  24. 20
  25. 105
  26. Obtuse
  27. 60
  28. 250
  29. 105
  30. 90
  31. Reflex
  32. 30
  33. West
  34. South
  35. 20
  36. 100
  37. Acute
  38. 40
  39. Obtuse
  40. 160

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