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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 980 · 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 9 o'clock (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 120° and 150°. What is the third angle (in degrees)?
  6. 6.Two angles of a triangle are 45° and 40°. 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.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  9. 9.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  10. 10.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  14. 14.An angle measures 50°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  15. 15.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  18. 18.Two angles of a triangle are 100° and 45°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  20. 20.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  21. 21.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  23. 23.Two angles of a triangle are 45° and 35°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 100° and 200°. What is the third angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  28. 28.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  29. 29.Two angles of a triangle are 65° and 65°. What is the third angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 55° and 25°. What is the third angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 140° and 60°. What is the third angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  34. 34.Two angles of a triangle are 80° and 20°. What is the third angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 120° and 120°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  39. 39.Two angles of a triangle are 100° and 50°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 80° and 60°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 60
  3. 75
  4. 30
  5. 90
  6. 95
  7. 30
  8. 150
  9. Obtuse
  10. 120
  11. 30
  12. 55
  13. 90
  14. Acute
  15. 170
  16. 85
  17. 60
  18. 35
  19. 80
  20. Right
  21. 80
  22. 160
  23. 100
  24. 140
  25. 165
  26. 60
  27. 120
  28. Straight
  29. 50
  30. 50
  31. 100
  32. 160
  33. 55
  34. 80
  35. 75
  36. 120
  37. 5
  38. 100
  39. 30
  40. 220

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