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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 988 · 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 3 o'clock (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  4. 4.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  5. 5.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 60° and 190°. What is the third angle (in degrees)?
  9. 9.Two angles of a triangle are 55° and 45°. What is the third angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 120° and 130°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 70° and 180°. What is the third angle (in degrees)?
  12. 12.Three angles meet at a point. Two of them are 140° and 140°. What is the third angle (in degrees)?
  13. 13.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  15. 15.Two angles of a triangle are 45° and 75°. What is the third angle (in degrees)?
  16. 16.Two angles of a triangle are 25° and 130°. What is the third angle (in degrees)?
  17. 17.Two angles of a triangle are 50° and 85°. What is the third angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 60° and 50°. What is the third angle (in degrees)?
  19. 19.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  20. 20.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 85° and 60°. What is the third angle (in degrees)?
  23. 23.An angle measures 50°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  24. 24.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 60° and 140°. What is the third angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 140° and 90°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  31. 31.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 80° and 130°. What is the third angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  34. 34.An angle measures 80°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  35. 35.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?

Answer key

  1. 90
  2. 30
  3. 90
  4. Right
  5. 35
  6. 75
  7. 80
  8. 110
  9. 80
  10. 110
  11. 110
  12. 80
  13. 65
  14. 100
  15. 60
  16. 25
  17. 45
  18. 250
  19. Straight
  20. 150
  21. 140
  22. 35
  23. Acute
  24. 95
  25. 45
  26. 10
  27. 160
  28. 130
  29. 50
  30. 20
  31. 15
  32. 150
  33. 30
  34. Acute
  35. 25
  36. 240
  37. 60
  38. 85
  39. 150
  40. 125

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