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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 714 · 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.An angle measures 125°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  2. 2.Three angles meet at a point. Two of them are 60° and 170°. What is the third angle (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 130° and 70°. What is the third angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 140° and 150°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  9. 9.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  10. 10.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  11. 11.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  12. 12.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  13. 13.Two angles of a triangle are 100° and 20°. What is the third angle (in degrees)?
  14. 14.Two angles of a triangle are 30° and 120°. What is the third angle (in degrees)?
  15. 15.Two angles of a triangle are 70° and 85°. What is the third angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 90° and 70°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 70° and 100°. What is the third angle (in degrees)?
  20. 20.An angle measures 155°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  21. 21.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  22. 22.An angle measures 10°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  23. 23.Two angles of a triangle are 80° and 70°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 90° and 60°. What is the third angle (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  26. 26.An angle measures 170°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  27. 27.Three angles meet at a point. Two of them are 80° and 90°. What is the third angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 50° and 140°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 50° and 80°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 40° and 85°. What is the third angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  34. 34.An angle measures 40°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  35. 35.Two angles of a triangle are 20° and 80°. What is the third angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  39. 39.Two angles of a triangle are 25° and 45°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?

Answer key

  1. Obtuse
  2. 130
  3. 120
  4. 30
  5. 160
  6. 70
  7. 70
  8. 60
  9. Right
  10. 65
  11. Straight
  12. 15
  13. 60
  14. 30
  15. 25
  16. 10
  17. 75
  18. 200
  19. 190
  20. Obtuse
  21. 85
  22. Acute
  23. 30
  24. 210
  25. 60
  26. Obtuse
  27. 190
  28. 145
  29. 90
  30. 170
  31. 230
  32. 55
  33. 90
  34. Acute
  35. 80
  36. 85
  37. 70
  38. 120
  39. 110
  40. 170

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