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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 597 · 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.An angle measures 95°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  2. 2.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  3. 3.Two angles of a triangle are 45° and 130°. What is the third angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  5. 5.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 90° and 130°. What is the third angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 140° and 80°. What is the third angle (in degrees)?
  12. 12.Two angles of a triangle are 75° and 65°. What is the third angle (in degrees)?
  13. 13.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  15. 15.Three angles meet at a point. Two of them are 130° and 50°. What is the third angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 50° and 70°. What is the third angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  19. 19.Two angles of a triangle are 85° and 60°. What is the third angle (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 50° and 90°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  22. 22.Two angles of a triangle are 100° and 45°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  25. 25.An angle measures 10°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  26. 26.Three angles meet at a point. Two of them are 90° and 210°. What is the third angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  29. 29.An angle measures 180°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  30. 30.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  31. 31.An angle measures 140°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  32. 32.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  34. 34.Two angles of a triangle are 60° and 40°. What is the third angle (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 150° and 140°. What is the third angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  38. 38.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 120° and 100°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 50° and 230°. What is the third angle (in degrees)?

Answer key

  1. Obtuse
  2. 150
  3. 5
  4. 60
  5. 10
  6. 90
  7. 60
  8. 170
  9. 140
  10. 120
  11. 140
  12. 40
  13. 100
  14. 150
  15. 180
  16. 240
  17. 35
  18. 140
  19. 35
  20. 220
  21. 60
  22. 35
  23. 130
  24. 80
  25. Acute
  26. 60
  27. 15
  28. 120
  29. Straight
  30. 145
  31. Obtuse
  32. 120
  33. 30
  34. 80
  35. 30
  36. 70
  37. 90
  38. 70
  39. 140
  40. 80

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