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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 710 · 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.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  2. 2.Three angles meet at a point. Two of them are 100° and 160°. What is the third angle (in degrees)?
  3. 3.Two angles of a triangle are 60° and 110°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  7. 7.An angle measures 55°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  8. 8.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 70° and 60°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 80° and 60°. What is the third angle (in degrees)?
  11. 11.Two angles of a triangle are 30° and 95°. What is the third angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 150° and 120°. What is the third angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 20° and 155°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  19. 19.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  21. 21.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  22. 22.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  25. 25.An angle measures 85°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  26. 26.Three angles meet at a point. Two of them are 80° and 170°. What is the third angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  28. 28.Two angles of a triangle are 90° and 75°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  30. 30.An angle measures 30°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  31. 31.Three angles meet at a point. Two of them are 100° and 50°. What is the third angle (in degrees)?
  32. 32.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  39. 39.An angle measures 75°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  40. 40.Three angles meet at a point. Two of them are 110° and 120°. What is the third angle (in degrees)?

Answer key

  1. Straight
  2. 100
  3. 10
  4. 90
  5. 150
  6. 60
  7. Acute
  8. 115
  9. 230
  10. 40
  11. 55
  12. 110
  13. 90
  14. 90
  15. 30
  16. 5
  17. 80
  18. 50
  19. 80
  20. 145
  21. Obtuse
  22. 30
  23. 65
  24. 85
  25. Acute
  26. 110
  27. 30
  28. 15
  29. 80
  30. Acute
  31. 210
  32. 30
  33. 160
  34. 150
  35. 60
  36. 100
  37. 180
  38. 240
  39. Acute
  40. 130

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