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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 994 · 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.An angle measures 35°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  2. 2.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  4. 4.Three angles meet at a point. Two of them are 120° and 130°. What is the third angle (in degrees)?
  5. 5.Two angles of a triangle are 70° and 55°. What is the third angle (in degrees)?
  6. 6.Three angles meet at a point. Two of them are 140° and 100°. What is the third angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  8. 8.Two angles of a triangle are 20° and 120°. What is the third angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 85° and 35°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  13. 13.An angle measures 95°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  14. 14.Three angles meet at a point. Two of them are 50° and 70°. What is the third angle (in degrees)?
  15. 15.An angle measures 80°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  16. 16.Three angles meet at a point. Two of them are 140° and 140°. What is the third angle (in degrees)?
  17. 17.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  18. 18.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 110° and 180°. What is the third angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  23. 23.An angle measures 40°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  24. 24.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  25. 25.An angle measures 65°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  26. 26.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 100° and 150°. What is the third angle (in degrees)?
  30. 30.An angle measures 165°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  31. 31.Three angles meet at a point. Two of them are 110° and 150°. What is the third angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 100° and 80°. What is the third angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  34. 34.Two angles of a triangle are 30° and 125°. What is the third angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  38. 38.Two angles of a triangle are 35° and 95°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 80° and 170°. What is the third angle (in degrees)?
  40. 40.An angle measures 145°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight

Answer key

  1. Acute
  2. 15
  3. Straight
  4. 110
  5. 55
  6. 120
  7. 50
  8. 40
  9. 75
  10. 60
  11. 120
  12. 45
  13. Obtuse
  14. 240
  15. Acute
  16. 80
  17. Right
  18. 30
  19. 105
  20. 80
  21. 70
  22. 90
  23. Acute
  24. 60
  25. Acute
  26. 140
  27. 130
  28. 150
  29. 110
  30. Obtuse
  31. 100
  32. 180
  33. 90
  34. 25
  35. 170
  36. 150
  37. 80
  38. 50
  39. 110
  40. Obtuse

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