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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 829 · 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.Three angles meet at a point. Two of them are 150° and 50°. What is the third angle (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 50° and 70°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  5. 5.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  8. 8.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
  11. 11.Two angles of a triangle are 35° and 60°. What is the third angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  13. 13.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  15. 15.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  16. 16.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  17. 17.An angle measures 170°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  18. 18.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?
  19. 19.An angle measures 110°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  20. 20.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 80° and 180°. What is the third angle (in degrees)?
  23. 23.An angle measures 130°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  24. 24.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 50° and 130°. What is the third angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 60° and 200°. What is the third angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 80° and 60°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 50° and 80°. What is the third angle (in degrees)?
  31. 31.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  32. 32.An angle measures 100°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  33. 33.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 100° and 120°. What is the third angle (in degrees)?
  40. 40.Two angles of a triangle are 40° and 50°. What is the third angle (in degrees)?

Answer key

  1. 160
  2. 60
  3. 240
  4. 30
  5. 40
  6. 10
  7. 240
  8. 30
  9. 115
  10. 130
  11. 85
  12. 80
  13. 65
  14. 150
  15. Right
  16. 150
  17. Obtuse
  18. 190
  19. Obtuse
  20. 85
  21. 150
  22. 100
  23. Obtuse
  24. 75
  25. 180
  26. 35
  27. 45
  28. 100
  29. 220
  30. 230
  31. 70
  32. Obtuse
  33. 120
  34. 40
  35. 150
  36. 25
  37. 110
  38. 55
  39. 140
  40. 90

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