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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 434 · 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.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  2. 2.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  3. 3.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  5. 5.An angle measures 40°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  6. 6.An angle measures 80°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  7. 7.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 50° and 200°. What is the third angle (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 70° and 230°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  12. 12.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 120° and 80°. What is the third angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  16. 16.Two angles of a triangle are 40° and 75°. What is the third angle (in degrees)?
  17. 17.Two angles of a triangle are 55° and 40°. What is the third angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  20. 20.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  21. 21.An angle measures 85°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  22. 22.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 90° and 50°. What is the third angle (in degrees)?
  24. 24.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 90° and 160°. What is the third angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 120° and 60°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  31. 31.An angle measures 65°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  32. 32.Three angles meet at a point. Two of them are 120° and 110°. 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.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  36. 36.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  37. 37.Two angles of a triangle are 25° and 110°. What is the third angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 110° and 180°. What is the third angle (in degrees)?
  39. 39.An angle measures 135°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  40. 40.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right

Answer key

  1. 85
  2. Straight
  3. 70
  4. 65
  5. Acute
  6. Acute
  7. 40
  8. 110
  9. 30
  10. 60
  11. 90
  12. 150
  13. 160
  14. 35
  15. 90
  16. 65
  17. 85
  18. 20
  19. 60
  20. Obtuse
  21. Acute
  22. 60
  23. 220
  24. 120
  25. 150
  26. 170
  27. 110
  28. 180
  29. 180
  30. 60
  31. Acute
  32. 130
  33. 55
  34. 30
  35. 5
  36. Obtuse
  37. 45
  38. 70
  39. Obtuse
  40. Right

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