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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 971 · 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 8 o'clock (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 140° and 50°. What is the third angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 60° and 170°. What is the third angle (in degrees)?
  6. 6.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  7. 7.An angle measures 85°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  8. 8.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 50° and 50°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 60° and 75°. What is the third angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 140° and 70°. What is the third angle (in degrees)?
  15. 15.Two angles of a triangle are 85° and 80°. What is the third angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 120° and 70°. What is the third angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 120° and 170°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 130° and 50°. What is the third angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  21. 21.Two angles of a triangle are 60° and 55°. What is the third angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  23. 23.An angle measures 30°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  24. 24.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 50° and 35°. What is the third angle (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  27. 27.An angle measures 35°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  28. 28.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  29. 29.Two angles of a triangle are 20° and 145°. What is the third angle (in degrees)?
  30. 30.An angle measures 110°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  31. 31.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 90° and 120°. What is the third angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  40. 40.Two angles of a triangle are 50° and 60°. What is the third angle (in degrees)?

Answer key

  1. 120
  2. 90
  3. 40
  4. 170
  5. 130
  6. 135
  7. Acute
  8. 140
  9. 260
  10. 45
  11. 55
  12. 70
  13. 120
  14. 150
  15. 15
  16. 50
  17. 170
  18. 70
  19. 180
  20. 30
  21. 65
  22. 60
  23. Acute
  24. 65
  25. 95
  26. 145
  27. Acute
  28. 30
  29. 15
  30. Obtuse
  31. 150
  32. 45
  33. 75
  34. 150
  35. 10
  36. 45
  37. 180
  38. 30
  39. 150
  40. 70

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