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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 764 · 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 together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  4. 4.Two angles of a triangle are 50° and 30°. What is the third angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  8. 8.Two angles of a triangle are 100° and 50°. What is the third angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  15. 15.Two angles of a triangle are 20° and 120°. What is the third angle (in degrees)?
  16. 16.Two angles of a triangle are 90° and 60°. What is the third angle (in degrees)?
  17. 17.Two angles of a triangle are 30° and 110°. What is the third angle (in degrees)?
  18. 18.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  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 together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 140° and 150°. What is the third angle (in degrees)?
  22. 22.Two angles of a triangle are 95° and 80°. What is the third angle (in degrees)?
  23. 23.An angle measures 120°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  24. 24.Three angles meet at a point. Two of them are 80° and 60°. What is the third angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  27. 27.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  29. 29.Two angles of a triangle are 20° and 20°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 130° and 100°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 20° and 95°. What is the third angle (in degrees)?
  32. 32.An angle measures 110°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  33. 33.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 120° and 140°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 70° and 210°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  39. 39.An angle measures 10°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  40. 40.An angle measures 40°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute

Answer key

  1. 45
  2. 165
  3. 80
  4. 100
  5. 150
  6. 30
  7. 180
  8. 30
  9. 30
  10. 105
  11. 70
  12. 110
  13. 60
  14. 90
  15. 40
  16. 30
  17. 40
  18. Straight
  19. 30
  20. 135
  21. 70
  22. 5
  23. Obtuse
  24. 220
  25. 20
  26. 5
  27. 15
  28. 90
  29. 140
  30. 130
  31. 65
  32. Obtuse
  33. 55
  34. 150
  35. 100
  36. 65
  37. 80
  38. 155
  39. Acute
  40. Acute

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