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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 939 · 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.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 110° and 50°. What is the third angle (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 50° and 220°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 130° and 150°. What is the third angle (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  7. 7.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  12. 12.Two angles of a triangle are 95° and 45°. What is the third angle (in degrees)?
  13. 13.Two angles of a triangle are 30° and 20°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 150° and 100°. What is the third angle (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 50° and 240°. What is the third angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  22. 22.An angle measures 35°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  23. 23.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 80° and 75°. What is the third angle (in degrees)?
  26. 26.Two angles of a triangle are 60° and 45°. What is the third angle (in degrees)?
  27. 27.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  28. 28.Two angles of a triangle are 40° and 35°. What is the third angle (in degrees)?
  29. 29.An angle measures 70°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  30. 30.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 100° and 60°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 50° and 60°. What is the third angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 130° and 160°. What is the third angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  35. 35.Two angles of a triangle are 95° and 75°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  37. 37.An angle measures 130°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  38. 38.Two angles of a triangle are 40° and 20°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 140° and 160°. What is the third angle (in degrees)?
  40. 40.An angle measures 40°. What kind of angle is it? (a) Right (b) Straight (c) Acute

Answer key

  1. 130
  2. 200
  3. 90
  4. 60
  5. 80
  6. Straight
  7. 140
  8. 30
  9. 20
  10. 190
  11. 150
  12. 40
  13. 130
  14. 15
  15. 30
  16. 120
  17. 110
  18. 150
  19. 90
  20. 70
  21. 30
  22. Acute
  23. 60
  24. 65
  25. 25
  26. 75
  27. Right
  28. 105
  29. Acute
  30. 150
  31. 20
  32. 70
  33. 70
  34. 45
  35. 10
  36. 35
  37. Obtuse
  38. 120
  39. 60
  40. Acute

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