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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 905 · 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 80°. What is the other angle (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 50° and 240°. What is the third angle (in degrees)?
  4. 4.Two angles of a triangle are 65° and 65°. What is the third angle (in degrees)?
  5. 5.Two angles of a triangle are 55° and 45°. What is the third angle (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  7. 7.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  8. 8.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 90° and 25°. What is the third angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  12. 12.Two angles of a triangle are 35° and 40°. What is the third angle (in degrees)?
  13. 13.Two angles of a triangle are 50° and 25°. What is the third angle (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  16. 16.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  17. 17.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 85° and 80°. What is the third angle (in degrees)?
  23. 23.An angle measures 25°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  24. 24.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  26. 26.Two angles of a triangle are 85° and 20°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 80° and 20°. What is the third angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 55° and 80°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 140° and 70°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 35° and 95°. What is the third angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  39. 39.Two angles of a triangle are 60° and 60°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 50° and 100°. What is the third angle (in degrees)?

Answer key

  1. 100
  2. 60
  3. 70
  4. 50
  5. 80
  6. Right
  7. 120
  8. 180
  9. 170
  10. 65
  11. 5
  12. 105
  13. 105
  14. 210
  15. 130
  16. Straight
  17. 60
  18. 15
  19. 20
  20. 45
  21. 165
  22. 15
  23. Acute
  24. 40
  25. 30
  26. 75
  27. 80
  28. 85
  29. 135
  30. 160
  31. 45
  32. 145
  33. 90
  34. 150
  35. 50
  36. 150
  37. 65
  38. 155
  39. 60
  40. 210

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