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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 965 · 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 10 o'clock (in degrees)?
  3. 3.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  4. 4.Two angles of a triangle are 50° and 95°. What is the third angle (in degrees)?
  5. 5.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  7. 7.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 70° and 230°. What is the third angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  12. 12.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  13. 13.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 60° and 80°. What is the third angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 130° and 100°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 120° and 90°. What is the third angle (in degrees)?
  18. 18.An angle measures 85°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  19. 19.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 50° and 170°. What is the third angle (in degrees)?
  23. 23.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  24. 24.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  25. 25.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 60° and 30°. What is the third angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 100° and 90°. What is the third angle (in degrees)?
  28. 28.Two angles of a triangle are 30° and 80°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 80° and 75°. What is the third 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.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  35. 35.An angle measures 30°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  36. 36.Three angles meet at a point. Two of them are 70° and 170°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 120° and 120°. What is the third angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?

Answer key

  1. 90
  2. 60
  3. Obtuse
  4. 35
  5. 50
  6. Right
  7. 120
  8. 60
  9. 30
  10. 35
  11. 50
  12. 180
  13. 55
  14. 220
  15. 45
  16. 130
  17. 150
  18. Acute
  19. 90
  20. 65
  21. 150
  22. 140
  23. 100
  24. Straight
  25. 60
  26. 90
  27. 170
  28. 70
  29. 140
  30. 25
  31. 15
  32. 115
  33. 155
  34. 160
  35. Acute
  36. 120
  37. 30
  38. 120
  39. 120
  40. 30

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