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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 761 · 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 3 o'clock (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 90° and 140°. What is the third angle (in degrees)?
  3. 3.Two angles of a triangle are 45° and 120°. What is the third angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  9. 9.An angle measures 150°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  10. 10.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  12. 12.An angle measures 180°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  13. 13.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 130° and 70°. What is the third angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 25°. What is the other angle (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.Three angles meet at a point. Two of them are 50° and 250°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 45° and 85°. What is the third angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 55° and 25°. What is the third angle (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 35° and 105°. What is the third angle (in degrees)?
  26. 26.Two angles of a triangle are 50° and 25°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 45° and 60°. What is the third angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  30. 30.An angle measures 175°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  31. 31.Two angles of a triangle are 50° and 65°. What is the third angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  33. 33.An angle measures 55°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  34. 34.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 70° and 190°. What is the third angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 50° and 100°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 50° and 90°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 130
  3. 15
  4. 155
  5. 30
  6. 25
  7. 150
  8. 5
  9. Obtuse
  10. 30
  11. 35
  12. Straight
  13. 75
  14. 160
  15. 45
  16. 150
  17. 65
  18. 15
  19. 60
  20. 50
  21. 70
  22. 100
  23. 60
  24. 210
  25. 40
  26. 105
  27. 75
  28. 10
  29. 120
  30. Obtuse
  31. 65
  32. 75
  33. Acute
  34. 60
  35. 100
  36. 160
  37. 120
  38. 145
  39. 210
  40. 220

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