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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 238 · 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.Three angles meet at a point. Two of them are 120° and 130°. What is the third angle (in degrees)?
  2. 2.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  4. 4.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  5. 5.An angle measures 70°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  6. 6.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  8. 8.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 110° and 160°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 85° and 25°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 50° and 150°. What is the third angle (in degrees)?
  12. 12.Two angles of a triangle are 60° and 70°. What is the third angle (in degrees)?
  13. 13.Two angles of a triangle are 100° and 40°. What is the third angle (in degrees)?
  14. 14.Two angles of a triangle are 95° and 30°. What is the third angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
  18. 18.An angle measures 145°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  19. 19.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  23. 23.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  24. 24.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 100° and 200°. What is the third angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 130° and 160°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 60° and 170°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  34. 34.An angle measures 120°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  35. 35.Three angles meet at a point. Two of them are 140° and 80°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 140° and 120°. What is the third angle (in degrees)?
  40. 40.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?

Answer key

  1. 110
  2. 60
  3. Straight
  4. 50
  5. Acute
  6. 170
  7. 150
  8. 150
  9. 90
  10. 70
  11. 160
  12. 50
  13. 40
  14. 55
  15. 120
  16. 110
  17. 210
  18. Obtuse
  19. 180
  20. 90
  21. 30
  22. 80
  23. Right
  24. 120
  25. 10
  26. 60
  27. 55
  28. 90
  29. 70
  30. 130
  31. 105
  32. 65
  33. 45
  34. Obtuse
  35. 140
  36. 35
  37. 70
  38. 85
  39. 100
  40. 20

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