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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 97 · 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.Three angles meet at a point. Two of them are 80° and 210°. What is the third angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 70° and 170°. What is the third angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  5. 5.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  7. 7.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  11. 11.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  12. 12.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  13. 13.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  14. 14.An angle measures 35°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  15. 15.Two angles of a triangle are 80° and 80°. What is the third angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 80° and 110°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 130° and 50°. What is the third angle (in degrees)?
  20. 20.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  21. 21.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 150° and 80°. What is the third angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  27. 27.Two angles of a triangle are 75° and 20°. 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.Three angles meet at a point. Two of them are 150° and 100°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 65° and 20°. What is the third angle (in degrees)?
  32. 32.An angle measures 20°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  33. 33.Three angles meet at a point. Two of them are 120° and 80°. What is the third angle (in degrees)?
  34. 34.Two angles of a triangle are 90° and 75°. What is the third angle (in degrees)?
  35. 35.An angle measures 15°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  36. 36.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 100° and 100°. What is the third angle (in degrees)?
  39. 39.Two angles of a triangle are 85° and 90°. What is the third angle (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?

Answer key

  1. 70
  2. 115
  3. 120
  4. 55
  5. 130
  6. 150
  7. 45
  8. 100
  9. 95
  10. 60
  11. Right
  12. Straight
  13. Acute
  14. Acute
  15. 20
  16. 15
  17. 210
  18. 170
  19. 180
  20. Obtuse
  21. 60
  22. 180
  23. 10
  24. 130
  25. 80
  26. 70
  27. 85
  28. 145
  29. 110
  30. 130
  31. 95
  32. Acute
  33. 160
  34. 15
  35. Acute
  36. 150
  37. 35
  38. 160
  39. 5
  40. 150

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