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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 285 · 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 2 o'clock (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 140° and 60°. What is the third angle (in degrees)?
  4. 4.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (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.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  7. 7.Two angles of a triangle are 30° and 70°. What is the third angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 130° and 150°. What is the third angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  11. 11.An angle measures 30°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  12. 12.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  13. 13.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 85° and 50°. What is the third angle (in degrees)?
  17. 17.An angle measures 180°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  18. 18.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 150° and 80°. What is the third angle (in degrees)?
  22. 22.Two angles of a triangle are 35° and 30°. What is the third angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  24. 24.An angle measures 105°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  25. 25.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 150° and 70°. What is the third angle (in degrees)?
  30. 30.Two angles of a triangle are 85° and 60°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 80° and 90°. What is the third angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 70° and 100°. What is the third angle (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 140° and 140°. What is the third angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  39. 39.An angle measures 85°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  40. 40.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?

Answer key

  1. 60
  2. 90
  3. 160
  4. Right
  5. 35
  6. 165
  7. 80
  8. 80
  9. 55
  10. 30
  11. Acute
  12. 60
  13. 125
  14. 30
  15. 45
  16. 45
  17. Straight
  18. 85
  19. 150
  20. 15
  21. 130
  22. 115
  23. 50
  24. Obtuse
  25. 150
  26. 40
  27. 25
  28. 85
  29. 140
  30. 35
  31. 15
  32. 190
  33. 160
  34. 190
  35. 150
  36. 60
  37. 80
  38. 150
  39. Acute
  40. 170

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