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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 962 · 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 2 o'clock (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  8. 8.An angle measures 20°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  9. 9.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 90° and 70°. What is the third angle (in degrees)?
  11. 11.An angle measures 15°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  12. 12.Two angles of a triangle are 60° and 110°. What is the third angle (in degrees)?
  13. 13.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  14. 14.Two angles of a triangle are 65° and 95°. What is the third angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  19. 19.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  20. 20.Two angles of a triangle are 20° and 80°. What is the third angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 100° and 90°. What is the third angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 70° and 140°. What is the third angle (in degrees)?
  24. 24.Two angles of a triangle are 50° and 90°. What is the third angle (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  26. 26.Two angles of a triangle are 80° and 85°. What is the third angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 130° and 120°. What is the third angle (in degrees)?
  30. 30.Two angles of a triangle are 25° and 125°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  32. 32.Two angles of a triangle are 30° and 120°. What is the third angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 70° and 110°. What is the third angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  35. 35.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  36. 36.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 90° and 100°. What is the third angle (in degrees)?
  38. 38.Two angles of a triangle are 75° and 75°. What is the third angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  40. 40.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?

Answer key

  1. 60
  2. 130
  3. 45
  4. 25
  5. Right
  6. 30
  7. 160
  8. Acute
  9. 55
  10. 200
  11. Acute
  12. 10
  13. Straight
  14. 20
  15. 90
  16. 75
  17. 90
  18. 30
  19. 60
  20. 80
  21. 170
  22. 240
  23. 150
  24. 40
  25. 150
  26. 15
  27. 75
  28. 40
  29. 110
  30. 30
  31. 50
  32. 30
  33. 180
  34. 30
  35. Obtuse
  36. 85
  37. 170
  38. 30
  39. 180
  40. 10

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