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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 599 · 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 4 o'clock (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  5. 5.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  7. 7.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  8. 8.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  9. 9.Two angles of a triangle are 65° and 45°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 75° and 30°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 150° and 50°. What is the third angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  18. 18.An angle measures 25°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  19. 19.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 140° and 60°. What is the third angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  22. 22.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  23. 23.Three angles meet at a point. Two of them are 70° and 120°. What is the third angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 110° and 60°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 60° and 170°. What is the third angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  28. 28.Two angles of a triangle are 60° and 100°. What is the third 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.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 70° and 60°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  35. 35.An angle measures 10°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  36. 36.Two angles of a triangle are 55° and 100°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  38. 38.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  39. 39.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 100° and 100°. What is the third angle (in degrees)?

Answer key

  1. 120
  2. 150
  3. 150
  4. 30
  5. 95
  6. 90
  7. Right
  8. 60
  9. 70
  10. 75
  11. 240
  12. 55
  13. 160
  14. 150
  15. 10
  16. 135
  17. 130
  18. Acute
  19. 85
  20. 160
  21. 100
  22. Straight
  23. 170
  24. 20
  25. 190
  26. 130
  27. 90
  28. 20
  29. 80
  30. 30
  31. 230
  32. 120
  33. 150
  34. 180
  35. Acute
  36. 25
  37. 60
  38. Obtuse
  39. 120
  40. 160

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