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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 318 · 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 7 o'clock (in degrees)?
  2. 2.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  3. 3.An angle measures 35°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  4. 4.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  5. 5.An angle measures 90°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  6. 6.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  7. 7.Two angles of a triangle are 85° and 35°. What is the third angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 20°. 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.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  20. 20.Two angles of a triangle are 35° and 90°. What is the third angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 50° and 110°. What is the third angle (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  26. 26.Two angles of a triangle are 100° and 20°. What is the third angle (in degrees)?
  27. 27.An angle measures 20°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  28. 28.Three angles meet at a point. Two of them are 50° and 50°. What is the third angle (in degrees)?
  29. 29.Two angles of a triangle are 60° and 90°. What is the third angle (in degrees)?
  30. 30.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  31. 31.Two angles of a triangle are 45° and 125°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 100° and 120°. What is the third angle (in degrees)?
  34. 34.An angle measures 100°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  35. 35.An angle measures 75°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  36. 36.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  38. 38.An angle measures 165°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  39. 39.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?

Answer key

  1. 150
  2. Straight
  3. Acute
  4. 170
  5. Right
  6. 25
  7. 60
  8. 45
  9. 130
  10. 120
  11. 55
  12. 45
  13. 190
  14. 70
  15. 180
  16. 120
  17. 70
  18. 80
  19. 30
  20. 55
  21. 15
  22. 90
  23. 30
  24. 200
  25. 60
  26. 60
  27. Acute
  28. 260
  29. 30
  30. 150
  31. 10
  32. 140
  33. 140
  34. Obtuse
  35. Acute
  36. 85
  37. 155
  38. Obtuse
  39. 110
  40. 65

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