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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 758 · 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 6 o'clock (in degrees)?
  2. 2.An angle measures 30°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  3. 3.Two angles of a triangle are 40° and 65°. What is the third angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  5. 5.Two angles of a triangle are 30° and 140°. What is the third angle (in degrees)?
  6. 6.Two angles of a triangle are 60° and 105°. What is the third angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  8. 8.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  9. 9.Three angles meet at a point. Two of them are 140° and 70°. What is the third angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 140° and 60°. What is the third angle (in degrees)?
  12. 12.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  13. 13.Three angles meet at a point. Two of them are 100° and 200°. What is the third angle (in degrees)?
  14. 14.Two angles of a triangle are 95° and 65°. What is the third angle (in degrees)?
  15. 15.An angle measures 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  16. 16.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  17. 17.Two angles of a triangle are 65° and 30°. What is the third angle (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  19. 19.Two angles of a triangle are 70° and 45°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 85° and 90°. What is the third angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 85° and 70°. What is the third angle (in degrees)?
  23. 23.An angle measures 125°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  24. 24.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  25. 25.An angle measures 10°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  26. 26.Two angles of a triangle are 90° and 50°. What is the third angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  28. 28.Two angles of a triangle are 25° and 75°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 40° and 50°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 50° and 105°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 85° and 35°. What is the third angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  34. 34.Two angles of a triangle are 80° and 60°. What is the third angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  37. 37.Two angles of a triangle are 70° and 40°. What is the third angle (in degrees)?
  38. 38.Two angles of a triangle are 65° and 45°. What is the third angle (in degrees)?
  39. 39.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  40. 40.An angle measures 155°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. 180
  2. Acute
  3. 75
  4. 125
  5. 10
  6. 15
  7. 30
  8. Obtuse
  9. 150
  10. 120
  11. 160
  12. Obtuse
  13. 60
  14. 20
  15. Straight
  16. 60
  17. 85
  18. 60
  19. 65
  20. 5
  21. 100
  22. 25
  23. Obtuse
  24. Right
  25. Acute
  26. 40
  27. 160
  28. 80
  29. 95
  30. 90
  31. 25
  32. 60
  33. 65
  34. 40
  35. 40
  36. 150
  37. 70
  38. 70
  39. 15
  40. Obtuse

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