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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 353 · 40 sums
TalentJR

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.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  2. 2.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  3. 3.Three angles meet at a point. Two of them are 110° and 140°. What is the third angle (in degrees)?
  4. 4.Two angles of a triangle are 45° and 25°. What is the third angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  9. 9.Two angles of a triangle are 30° and 40°. What is the third angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  11. 11.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  12. 12.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 150° and 90°. What is the third angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  16. 16.An angle measures 150°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  17. 17.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  18. 18.Three angles meet at a point. Two of them are 70° and 190°. What is the third angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  21. 21.An angle measures 30°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  22. 22.Three angles meet at a point. Two of them are 100° and 90°. What is the third angle (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 75° and 50°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 60° and 230°. What is the third angle (in degrees)?
  27. 27.An angle measures 170°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  28. 28.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  29. 29.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 110° and 170°. What is the third angle (in degrees)?
  32. 32.An angle measures 35°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  33. 33.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  35. 35.Two angles of a triangle are 40° and 20°. What is the third angle (in degrees)?
  36. 36.Two angles of a triangle are 20° and 55°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 50° and 80°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?

Answer key

  1. 50
  2. Straight
  3. 110
  4. 110
  5. 90
  6. 30
  7. 30
  8. 60
  9. 110
  10. 125
  11. Right
  12. 45
  13. 120
  14. 20
  15. 150
  16. Obtuse
  17. Obtuse
  18. 100
  19. 60
  20. 65
  21. Acute
  22. 170
  23. 30
  24. 45
  25. 55
  26. 70
  27. Obtuse
  28. 55
  29. 70
  30. 70
  31. 80
  32. Acute
  33. 75
  34. 25
  35. 120
  36. 105
  37. 80
  38. 180
  39. 230
  40. 110

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