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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 850 · 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.A right angle is split into two angles. One of them is 65°. 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.Two angles of a triangle are 40° and 80°. What is the third angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  6. 6.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  7. 7.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  9. 9.An angle measures 70°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  10. 10.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 90° and 80°. What is the third angle (in degrees)?
  12. 12.An angle measures 35°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  13. 13.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  17. 17.Two angles of a triangle are 40° and 45°. What is the third angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 120° and 140°. What is the third angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  21. 21.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  22. 22.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  23. 23.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 80° and 220°. What is the third angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 50° and 220°. What is the third angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  28. 28.Two angles of a triangle are 30° and 110°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 90° and 70°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 70° and 210°. What is the third angle (in degrees)?
  33. 33.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  34. 34.Three angles meet at a point. Two of them are 90° and 90°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 100° and 160°. What is the third angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 90° and 200°. What is the third angle (in degrees)?
  38. 38.An angle measures 170°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  39. 39.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?

Answer key

  1. 130
  2. 25
  3. Straight
  4. 60
  5. 60
  6. Obtuse
  7. 30
  8. 50
  9. Acute
  10. 45
  11. 190
  12. Acute
  13. 150
  14. 80
  15. 90
  16. 10
  17. 95
  18. 145
  19. 100
  20. 30
  21. Obtuse
  22. 150
  23. 35
  24. 60
  25. 90
  26. 15
  27. 75
  28. 40
  29. 115
  30. 20
  31. 10
  32. 80
  33. Acute
  34. 180
  35. 100
  36. 125
  37. 70
  38. Obtuse
  39. 90
  40. 150

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