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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 691 · 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 90°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 45° and 25°. What is the third angle (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  5. 5.Two angles of a triangle are 50° and 55°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 140° and 130°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  11. 11.An angle measures 120°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  12. 12.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  14. 14.Two angles of a triangle are 70° and 90°. What is the third angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 110° and 150°. What is the third angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 50° and 80°. What is the third angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  24. 24.Two angles of a triangle are 55° and 85°. What is the third angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  26. 26.An angle measures 95°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  27. 27.Two angles of a triangle are 60° and 40°. What is the third angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 120° and 120°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 25° and 50°. What is the third angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 90° and 120°. What is the third angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  38. 38.Two angles of a triangle are 100° and 50°. What is the third angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  40. 40.An angle measures 170°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight

Answer key

  1. 120
  2. 110
  3. 30
  4. 80
  5. 75
  6. 120
  7. 90
  8. 40
  9. 120
  10. 180
  11. Obtuse
  12. 60
  13. 90
  14. 20
  15. 40
  16. 130
  17. 100
  18. 230
  19. 115
  20. 55
  21. 50
  22. 150
  23. 90
  24. 40
  25. 35
  26. Obtuse
  27. 80
  28. 140
  29. 120
  30. 125
  31. 100
  32. 160
  33. 120
  34. 110
  35. 105
  36. 150
  37. 60
  38. 30
  39. 30
  40. Obtuse

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