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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 926 · 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 6 o'clock (in degrees)?
  2. 2.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  7. 7.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  8. 8.An angle measures 25°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  9. 9.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 40° and 60°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 110° and 100°. What is the third angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  13. 13.Two angles of a triangle are 40° and 105°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  19. 19.Two angles of a triangle are 90° and 35°. What is the third angle (in degrees)?
  20. 20.An angle measures 90°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  21. 21.An angle measures 55°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  22. 22.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  23. 23.An angle measures 130°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  24. 24.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 80° and 120°. What is the third angle (in degrees)?
  26. 26.An angle measures 170°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  27. 27.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 80° and 130°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 80° and 70°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 85° and 85°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 110°. 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.Three angles meet at a point. Two of them are 140° and 80°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 150° and 50°. What is the third angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 120° and 70°. What is the third angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?

Answer key

  1. 180
  2. 20
  3. 110
  4. 45
  5. 60
  6. Straight
  7. 60
  8. Acute
  9. 150
  10. 80
  11. 150
  12. 155
  13. 35
  14. 70
  15. 85
  16. 90
  17. 55
  18. 60
  19. 55
  20. Right
  21. Acute
  22. 80
  23. Obtuse
  24. 30
  25. 160
  26. Obtuse
  27. 50
  28. 150
  29. 150
  30. 210
  31. 10
  32. 70
  33. 150
  34. 140
  35. 160
  36. 170
  37. 90
  38. 105
  39. 120
  40. 160

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