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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 155 · 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 7 o'clock (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  3. 3.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  4. 4.An angle measures 165°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  5. 5.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 35°. What is the other 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.Three angles meet at a point. Two of them are 150° and 80°. What is the third angle (in degrees)?
  12. 12.Two angles of a triangle are 90° and 60°. What is the third angle (in degrees)?
  13. 13.Two angles of a triangle are 60° and 95°. What is the third angle (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  15. 15.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 120° and 110°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 50° and 220°. What is the third angle (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 50° and 50°. What is the third angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 140° and 100°. What is the third angle (in degrees)?
  23. 23.An angle measures 20°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  24. 24.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  25. 25.An angle measures 145°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  26. 26.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 70° and 170°. What is the third angle (in degrees)?
  29. 29.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  30. 30.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 60° and 120°. What is the third angle (in degrees)?
  32. 32.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 100° and 110°. What is the third angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  38. 38.Two angles of a triangle are 35° and 20°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 50° and 230°. What is the third angle (in degrees)?
  40. 40.Two angles of a triangle are 60° and 110°. What is the third angle (in degrees)?

Answer key

  1. 150
  2. Right
  3. Straight
  4. Obtuse
  5. 80
  6. 30
  7. 60
  8. 165
  9. 145
  10. 15
  11. 130
  12. 30
  13. 25
  14. 150
  15. 190
  16. 130
  17. 90
  18. 30
  19. 30
  20. 155
  21. 260
  22. 120
  23. Acute
  24. 150
  25. Obtuse
  26. 105
  27. 85
  28. 120
  29. 60
  30. 90
  31. 180
  32. 60
  33. 170
  34. 90
  35. 65
  36. 150
  37. 95
  38. 125
  39. 80
  40. 10

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