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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 885 · 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.Three angles meet at a point. Two of them are 120° and 120°. What is the third angle (in degrees)?
  2. 2.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  3. 3.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  5. 5.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  6. 6.Two angles of a triangle are 85° and 65°. What is the third angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  9. 9.An angle measures 90°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  10. 10.Three angles meet at a point. Two of them are 120° and 80°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 70° and 230°. What is the third angle (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  15. 15.Two angles of a triangle are 20° and 145°. What is the third angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  17. 17.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  18. 18.Two angles of a triangle are 30° and 75°. What is the third angle (in degrees)?
  19. 19.Two angles of a triangle are 45° and 30°. What is the third angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  24. 24.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  25. 25.An angle measures 95°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  26. 26.Two angles of a triangle are 55° and 115°. What is the third angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 150° and 90°. What is the third angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 60° and 200°. What is the third angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 90° and 110°. What is the third angle (in degrees)?
  30. 30.An angle measures 25°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  31. 31.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  38. 38.Two angles of a triangle are 30° and 70°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 90° and 100°. What is the third angle (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?

Answer key

  1. 120
  2. Obtuse
  3. 135
  4. 90
  5. Straight
  6. 30
  7. 30
  8. 170
  9. Right
  10. 160
  11. 120
  12. 100
  13. 60
  14. 60
  15. 15
  16. 165
  17. Obtuse
  18. 75
  19. 105
  20. 5
  21. 55
  22. 70
  23. 20
  24. 150
  25. Obtuse
  26. 10
  27. 120
  28. 100
  29. 160
  30. Acute
  31. 25
  32. 45
  33. 90
  34. 50
  35. 30
  36. 190
  37. 160
  38. 80
  39. 170
  40. 180

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