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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 795 · 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 95°. What is the other angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 70° and 70°. What is the third angle (in degrees)?
  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 together make a straight line. One of them is 45°. 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.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 130° and 140°. What is the third angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  13. 13.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  18. 18.Two angles of a triangle are 80° and 90°. What is the third angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 100° and 140°. What is the third angle (in degrees)?
  23. 23.Two angles of a triangle are 65° and 95°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 120° and 150°. What is the third angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 50° and 200°. What is the third angle (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 60° and 180°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 130° and 50°. What is the third angle (in degrees)?
  32. 32.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  34. 34.Two angles of a triangle are 25° and 50°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 80° and 120°. What is the third angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 70° and 190°. What is the third angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 150° and 100°. What is the third angle (in degrees)?
  38. 38.An angle measures 170°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  39. 39.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  40. 40.Two angles of a triangle are 50° and 30°. What is the third angle (in degrees)?

Answer key

  1. 85
  2. 95
  3. 220
  4. 110
  5. 135
  6. 110
  7. 70
  8. 85
  9. 120
  10. 90
  11. 75
  12. 50
  13. 10
  14. 60
  15. 60
  16. 5
  17. 100
  18. 10
  19. 130
  20. 160
  21. 30
  22. 120
  23. 20
  24. 90
  25. 110
  26. 170
  27. 40
  28. 50
  29. 150
  30. 120
  31. 180
  32. 180
  33. 80
  34. 105
  35. 160
  36. 100
  37. 110
  38. Obtuse
  39. 55
  40. 100

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