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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 588 · 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.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  3. 3.Two angles of a triangle are 40° and 135°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  8. 8.An angle measures 70°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  9. 9.Three angles meet at a point. Two of them are 120° and 160°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 30° and 125°. What is the third angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  13. 13.An angle measures 160°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  14. 14.An angle measures 50°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  15. 15.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  17. 17.Two angles of a triangle are 65° and 40°. What is the third angle (in degrees)?
  18. 18.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  19. 19.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 60° and 200°. What is the third angle (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  23. 23.An angle measures 80°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  24. 24.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 80° and 210°. What is the third angle (in degrees)?
  26. 26.An angle measures 130°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  27. 27.An angle measures 140°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  28. 28.Two angles of a triangle are 45° and 50°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 60° and 160°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 85° and 60°. What is the third angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  37. 37.Two angles of a triangle are 50° and 70°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  39. 39.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  40. 40.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?

Answer key

  1. 150
  2. 30
  3. 5
  4. 90
  5. 60
  6. 40
  7. 180
  8. Acute
  9. 80
  10. 25
  11. 155
  12. 30
  13. Obtuse
  14. Acute
  15. 110
  16. 55
  17. 75
  18. Right
  19. 75
  20. 25
  21. 100
  22. 90
  23. Acute
  24. 30
  25. 70
  26. Obtuse
  27. Obtuse
  28. 85
  29. 40
  30. 140
  31. 35
  32. 65
  33. 140
  34. 135
  35. 55
  36. 80
  37. 60
  38. 10
  39. Straight
  40. 150

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