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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 571 · 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.Two angles of a triangle are 55° and 40°. What is the third angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 60° and 100°. What is the third angle (in degrees)?
  3. 3.Two angles of a triangle are 35° and 70°. What is the third angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  5. 5.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  6. 6.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  7. 7.Three angles meet at a point. Two of them are 120° and 50°. What is the third angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 70° and 70°. What is the third angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 50° and 50°. What is the third angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  17. 17.An angle measures 55°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  18. 18.An angle measures 15°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  19. 19.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  20. 20.An angle measures 40°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  21. 21.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  23. 23.An angle measures 135°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  24. 24.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 55° and 110°. What is the third angle (in degrees)?
  26. 26.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  27. 27.Two angles of a triangle are 40° and 110°. What is the third angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 50° and 90°. What is the third angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 140° and 100°. What is the third angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 50° and 190°. What is the third angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 130° and 100°. What is the third angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 100° and 140°. What is the third angle (in degrees)?
  37. 37.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  38. 38.Two angles of a triangle are 35° and 115°. What is the third angle (in degrees)?
  39. 39.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 50° and 110°. What is the third angle (in degrees)?

Answer key

  1. 85
  2. 200
  3. 75
  4. Straight
  5. 180
  6. Right
  7. 190
  8. 220
  9. 45
  10. 60
  11. 260
  12. 35
  13. 190
  14. 20
  15. 5
  16. 90
  17. Acute
  18. Acute
  19. 80
  20. Acute
  21. 120
  22. 170
  23. Obtuse
  24. 60
  25. 15
  26. 60
  27. 30
  28. 220
  29. 120
  30. 70
  31. 120
  32. 130
  33. 75
  34. 40
  35. 65
  36. 120
  37. 30
  38. 30
  39. 30
  40. 200

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