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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 152 · 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 11 o'clock (in degrees)?
  2. 2.Two angles of a triangle are 90° and 65°. What is the third angle (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 50° and 160°. What is the third angle (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 80° and 70°. What is the third angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 70° and 200°. What is the third angle (in degrees)?
  6. 6.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  7. 7.An angle measures 60°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  8. 8.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 60° and 80°. What is the third angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  11. 11.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  12. 12.Three angles meet at a point. Two of them are 140° and 80°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  14. 14.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  15. 15.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 120° and 140°. What is the third 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.Three angles meet at a point. Two of them are 120° and 180°. What is the third angle (in degrees)?
  19. 19.An angle measures 140°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  20. 20.Two angles of a triangle are 75° and 95°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  22. 22.An angle measures 130°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  23. 23.Two angles of a triangle are 55° and 20°. What is the third angle (in degrees)?
  24. 24.Two angles of a triangle are 80° and 80°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 85° and 30°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 150° and 100°. What is the third angle (in degrees)?
  27. 27.An angle measures 40°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  28. 28.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  29. 29.Two angles of a triangle are 35° and 135°. What is the third angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 25° and 65°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 55° and 55°. What is the third angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  34. 34.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  35. 35.Two angles of a triangle are 25° and 95°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  38. 38.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  39. 39.An angle measures 50°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  40. 40.Three angles meet at a point. Two of them are 120° and 160°. What is the third angle (in degrees)?

Answer key

  1. 30
  2. 25
  3. 150
  4. 210
  5. 90
  6. 135
  7. Acute
  8. 120
  9. 220
  10. 15
  11. Right
  12. 140
  13. 60
  14. Obtuse
  15. 50
  16. 100
  17. 90
  18. 60
  19. Obtuse
  20. 10
  21. 120
  22. Obtuse
  23. 105
  24. 20
  25. 65
  26. 110
  27. Acute
  28. 60
  29. 10
  30. 95
  31. 90
  32. 70
  33. 60
  34. Straight
  35. 60
  36. 65
  37. 90
  38. 45
  39. Acute
  40. 80

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