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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 449 · 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 5 o'clock (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  3. 3.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  4. 4.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  5. 5.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  8. 8.An angle measures 35°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  9. 9.Two angles of a triangle are 90° and 80°. What is the third angle (in degrees)?
  10. 10.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  11. 11.Two angles of a triangle are 55° and 40°. What is the third angle (in degrees)?
  12. 12.Three angles meet at a point. Two of them are 60° and 230°. What is the third angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 60° and 160°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  15. 15.Two angles of a triangle are 60° and 110°. What is the third angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 50° and 85°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  23. 23.Two angles of a triangle are 90° and 75°. What is the third angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 110° and 70°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 75° and 85°. What is the third angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  29. 29.Two angles of a triangle are 30° and 65°. What is the third angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 55° and 35°. What is the third angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 60° and 55°. What is the third angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  36. 36.Two angles of a triangle are 30° and 80°. What is the third angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 80° and 140°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 150° and 130°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?

Answer key

  1. 150
  2. Right
  3. 35
  4. Acute
  5. 70
  6. 120
  7. 25
  8. Acute
  9. 10
  10. Straight
  11. 85
  12. 70
  13. 140
  14. 5
  15. 10
  16. 155
  17. 60
  18. 130
  19. 70
  20. 45
  21. 150
  22. 90
  23. 15
  24. 65
  25. 55
  26. 180
  27. 20
  28. 60
  29. 85
  30. 65
  31. 90
  32. 35
  33. 65
  34. 85
  35. 95
  36. 70
  37. 190
  38. 140
  39. 80
  40. 165

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