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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 463 · 40 sums
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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 2 o'clock (in degrees)?
  2. 2.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  3. 3.Two angles of a triangle are 35° and 35°. What is the third angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  5. 5.An angle measures 95°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  6. 6.Three angles meet at a point. Two of them are 60° and 120°. What is the third angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  8. 8.Two angles of a triangle are 95° and 20°. What is the third angle (in degrees)?
  9. 9.Three angles meet at a point. Two of them are 80° and 90°. What is the third angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  11. 11.Two angles of a triangle are 55° and 30°. What is the third angle (in degrees)?
  12. 12.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  13. 13.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  18. 18.An angle measures 65°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  19. 19.An angle measures 80°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  20. 20.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 120° and 110°. What is the third angle (in degrees)?
  22. 22.Two angles of a triangle are 25° and 85°. What is the third angle (in degrees)?
  23. 23.Two angles of a triangle are 55° and 120°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 60° and 110°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 90° and 130°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 55° and 75°. What is the third angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  30. 30.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  31. 31.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 50° and 170°. What is the third angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  36. 36.Two angles of a triangle are 60° and 75°. What is the third angle (in degrees)?
  37. 37.Two angles of a triangle are 35° and 30°. What is the third angle (in degrees)?
  38. 38.An angle measures 125°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  39. 39.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?

Answer key

  1. 60
  2. Straight
  3. 110
  4. 150
  5. Obtuse
  6. 180
  7. 40
  8. 65
  9. 190
  10. 150
  11. 95
  12. 30
  13. 70
  14. 30
  15. 180
  16. 15
  17. 80
  18. Acute
  19. Acute
  20. 70
  21. 130
  22. 70
  23. 5
  24. 160
  25. 10
  26. 140
  27. 50
  28. 75
  29. 60
  30. Right
  31. 30
  32. 55
  33. 100
  34. 140
  35. 20
  36. 45
  37. 115
  38. Obtuse
  39. 120
  40. 120

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