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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 879 · 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 140°. What is the other angle (in degrees)?
  2. 2.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  3. 3.An angle measures 175°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  4. 4.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  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 70°. What is the other angle (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 60° and 50°. What is the third angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 70° and 150°. What is the third angle (in degrees)?
  9. 9.An angle measures 160°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  10. 10.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  12. 12.Three angles meet at a point. Two of them are 100° and 130°. What is the third angle (in degrees)?
  13. 13.An angle measures 70°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  14. 14.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  18. 18.Two angles of a triangle are 70° and 45°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  20. 20.An angle measures 25°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  21. 21.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 45° and 40°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 150° and 130°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 110° and 190°. What is the third angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 110° and 180°. What is the third angle (in degrees)?
  26. 26.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  27. 27.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 140° and 150°. What is the third angle (in degrees)?
  31. 31.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  32. 32.Two angles of a triangle are 60° and 35°. What is the third angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  35. 35.Two angles of a triangle are 95° and 40°. What is the third angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  37. 37.An angle measures 110°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  38. 38.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  39. 39.Two angles of a triangle are 25° and 70°. What is the third angle (in degrees)?
  40. 40.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. 40
  2. 5
  3. Obtuse
  4. 85
  5. 35
  6. 110
  7. 250
  8. 140
  9. Obtuse
  10. 85
  11. 30
  12. 130
  13. Acute
  14. 30
  15. 65
  16. 80
  17. 150
  18. 65
  19. 190
  20. Acute
  21. 155
  22. 95
  23. 80
  24. 60
  25. 70
  26. Straight
  27. 55
  28. 40
  29. 180
  30. 70
  31. 120
  32. 85
  33. 60
  34. 60
  35. 45
  36. 170
  37. Obtuse
  38. 120
  39. 85
  40. Right

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