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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 923 · 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.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 130° and 100°. What is the third angle (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  7. 7.Two angles of a triangle are 25° and 45°. What is the third angle (in degrees)?
  8. 8.Two angles of a triangle are 40° and 70°. What is the third angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  12. 12.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 90° and 60°. What is the third angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 150° and 80°. What is the third angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  20. 20.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  21. 21.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  23. 23.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 60° and 70°. What is the third angle (in degrees)?
  27. 27.An angle measures 60°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  28. 28.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 80° and 80°. What is the third angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  34. 34.An angle measures 155°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  35. 35.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 90° and 170°. What is the third angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  39. 39.Two angles of a triangle are 65° and 30°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?

Answer key

  1. 180
  2. 60
  3. 115
  4. 110
  5. 130
  6. Right
  7. 110
  8. 70
  9. 90
  10. 145
  11. 155
  12. 30
  13. 150
  14. 60
  15. 70
  16. 30
  17. 85
  18. 130
  19. 80
  20. Straight
  21. 120
  22. 75
  23. 150
  24. 95
  25. 15
  26. 50
  27. Acute
  28. 20
  29. 200
  30. 5
  31. 50
  32. 10
  33. 30
  34. Obtuse
  35. 50
  36. 120
  37. 100
  38. 60
  39. 85
  40. 20

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