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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 947 · 40 sums
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The method (Know the totals): Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°. On a straight line: the two angles add up to 180°. In a triangle: the three angles add up to 180°. Around a point: 360°. Clock: each hour mark is 30° apart (360° ÷ 12).

NameDateTime takenScore ___ / 40
  1. 1.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  2. 2.An angle measures 105°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  3. 3.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  5. 5.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  6. 6.Two angles of a triangle are 100° and 70°. What is the third angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  11. 11.Three angles meet at a point. Two of them are 60° and 240°. What is the third angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  13. 13.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  14. 14.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 90° and 100°. What is the third angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 100° and 120°. What is the third angle (in degrees)?
  21. 21.Two angles of a triangle are 50° and 125°. What is the third angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  24. 24.Two angles of a triangle are 70° and 50°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 85° and 65°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 60° and 170°. What is the third angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  28. 28.Two angles of a triangle are 55° and 25°. What is the third angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 70° and 50°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 140° and 120°. What is the third angle (in degrees)?
  31. 31.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 80° and 180°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 75° and 90°. What is the third angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 130° and 60°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  39. 39.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 70° and 140°. What is the third angle (in degrees)?

Answer key

  1. 30
  2. Obtuse
  3. 150
  4. 15
  5. Straight
  6. 10
  7. 25
  8. 60
  9. 150
  10. Right
  11. 60
  12. 20
  13. Acute
  14. 120
  15. 70
  16. 170
  17. 55
  18. 75
  19. 160
  20. 140
  21. 5
  22. 90
  23. 180
  24. 60
  25. 30
  26. 130
  27. 5
  28. 100
  29. 240
  30. 100
  31. 50
  32. 80
  33. 60
  34. 100
  35. 15
  36. 170
  37. 40
  38. 60
  39. 170
  40. 150

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