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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 636 · 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 4 o'clock (in degrees)?
  2. 2.An angle measures 40°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  3. 3.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 90° and 130°. What is the third angle (in degrees)?
  5. 5.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  7. 7.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 95° and 55°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 150° and 70°. What is the third angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  13. 13.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  14. 14.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  15. 15.An angle measures 80°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  16. 16.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 100° and 200°. What is the third angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  20. 20.An angle measures 130°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  21. 21.Three angles meet at a point. Two of them are 60° and 180°. What is the third angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 150° and 130°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 90° and 85°. What is the third angle (in degrees)?
  26. 26.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 100° and 180°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 60° and 100°. What is the third angle (in degrees)?
  34. 34.Two angles of a triangle are 20° and 145°. What is the third angle (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  37. 37.An angle measures 75°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  38. 38.An angle measures 65°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  39. 39.Three angles meet at a point. Two of them are 70° and 130°. What is the third angle (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?

Answer key

  1. 120
  2. Acute
  3. 60
  4. 140
  5. 45
  6. Straight
  7. 30
  8. 80
  9. 130
  10. 30
  11. 140
  12. 45
  13. Right
  14. 50
  15. Acute
  16. 30
  17. 25
  18. 60
  19. 50
  20. Obtuse
  21. 120
  22. 20
  23. 80
  24. 95
  25. 5
  26. 90
  27. 30
  28. 65
  29. 120
  30. 80
  31. 155
  32. 150
  33. 20
  34. 15
  35. 180
  36. 90
  37. Acute
  38. Acute
  39. 160
  40. 150

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