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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 125 · 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 7 o'clock (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  3. 3.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  4. 4.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  5. 5.Three angles meet at a point. Two of them are 130° and 110°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 80° and 100°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 150° and 150°. What is the third angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  12. 12.Two angles of a triangle are 100° and 70°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 40° and 130°. What is the third angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 100° and 60°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 35° and 125°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 120° and 120°. What is the third angle (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 together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 60° and 180°. What is the third angle (in degrees)?
  26. 26.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  27. 27.An angle measures 125°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  28. 28.Three angles meet at a point. Two of them are 80° and 80°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  30. 30.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  31. 31.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 90° and 75°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 90° and 80°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 130° and 100°. What is the third angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 90° and 60°. What is the third angle (in degrees)?
  38. 38.An angle measures 140°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  39. 39.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  40. 40.Two angles of a triangle are 45° and 40°. What is the third angle (in degrees)?

Answer key

  1. 150
  2. 190
  3. Right
  4. Straight
  5. 120
  6. 30
  7. 180
  8. 85
  9. 60
  10. 170
  11. 50
  12. 10
  13. 120
  14. 145
  15. 65
  16. 10
  17. 20
  18. 60
  19. 200
  20. 20
  21. 120
  22. 120
  23. 180
  24. 105
  25. 120
  26. 90
  27. Obtuse
  28. 200
  29. 30
  30. 60
  31. 75
  32. 70
  33. 15
  34. 190
  35. 130
  36. 55
  37. 210
  38. Obtuse
  39. 75
  40. 95

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