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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 296 · 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 3 o'clock (in degrees)?
  2. 2.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  5. 5.Two angles of a triangle are 25° and 130°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 50° and 230°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  9. 9.Two angles of a triangle are 85° and 50°. What is the third angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  12. 12.Two angles of a triangle are 80° and 45°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 90° and 90°. What is the third angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  16. 16.Two angles of a triangle are 80° and 65°. What is the third angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 50° and 160°. What is the third angle (in degrees)?
  19. 19.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  20. 20.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 50° and 110°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 100° and 50°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 95° and 80°. What is the third angle (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  29. 29.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  30. 30.An angle measures 105°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  31. 31.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 110° and 150°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 100° and 60°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 40° and 70°. What is the third angle (in degrees)?
  36. 36.An angle measures 170°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  37. 37.Two angles of a triangle are 20° and 40°. What is the third angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  39. 39.Two angles of a triangle are 20° and 85°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 70° and 100°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 75
  3. 40
  4. Straight
  5. 25
  6. 60
  7. 80
  8. 70
  9. 45
  10. 110
  11. 85
  12. 55
  13. 30
  14. 180
  15. 150
  16. 35
  17. 40
  18. 150
  19. Right
  20. 50
  21. 20
  22. 20
  23. 200
  24. 210
  25. 5
  26. 145
  27. 30
  28. 30
  29. 80
  30. Obtuse
  31. 45
  32. 70
  33. 100
  34. 200
  35. 70
  36. Obtuse
  37. 120
  38. 90
  39. 75
  40. 190

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